Thank you all for your help and your feedback.
When checking your answers I found 2 issues at the bottom of the questions. None of these are necessarily connected to problems outside our "known" "normal" life. The first one is what happens to my cat if I vanish from his life quite suddenly without a possibility to come back. The second one is simply fear of the unknown. The solution for the first on is to ask a couple of persons (e.g. family) to take care of him if something happens to me. The solution for the second one is to get more information so that I have a better notion/conception what happens and what is connected to it.
At my age and in my state of health I have to think about what happens if the cats outlive both of us, a distinct possibility. It's not a pleasant thought.
I would feel the same in your situation. I hope your cats will have someone to take over from you. Maybe you can find someone in your larger family, neighbourhood. Maybe you can ask animal shelters or the society for the prevention of cruelty to animals about this.
And again, the whole "raised to STO" thing sounds far to simplistic and new age. I really don't think it's just gonna be a matter or ascension like that.
We don't know how the Wave will manifest itself (if it isn't already started), so this is just an assumption, but I do have a feeling that it won't be in an evangelic style of "ascension", when 4D candidates will disappear from the face of the Earth in a poof.
I agree that I lack knowledge about the whole "raised to STO" thing. Some of my questions above are somewhat simplistic, too.

I am not too sure about the new age type of ascension either. As far as I remember they tell that we just skip 4D and go directly to 5D because we are so good etc. When you consider that 5D is a sort "recreation area" between lives one wonders...
Not to come across as rude but would STO beings even have pets? Isn't that counted as a possesion which is strictly STS? Animals can take care of themselves for the most part why would they need us after the wave transition?
New STO beings may just live with 4-legged (winged, swimming, green, whatever) family members before becoming STO? In my opinion animals and plants belong to themselves. But the law of most countries tends to have another opinion, which is shared by a lot of humans. "My" cat is just part of of my family.
Perhaps you may want to be careful when you say that animals can take care of themselves when it comes to domestic animals in 3D. Living with human has removed some of the original ability to handle a wild life. Humankind may have/feel the responsibility for them and may have to recompense somehow.
I remember a transcript mentioning that dogs experience need as love so we don't really know if our pets truly would stay with us if they didn't need us. There could be exceptions however.
Cats may just leave and search themselves another home if they are not satisfied enough with the service. :)
Keit I've thought about that as well as far as companions go. We may be of service to them in that way just not as keeping them as pets you know?
But I guess living with people may have a certain effect on them which may include leading to the potential of them becoming 3d candidates.
Well, you are here now, and you probably take good care of your cat as you promised, and that is what important. We all have lessons, including our furry friends, and we can't possibly know what exactly will happen or when, but we can make the best with what we have now, and with the time that is available to us. I think that if what C's said is true, and lower creatures are somehow assisted in their progression by being near those who are on a higher level, the best thing you can do for your kitty is to work on yourself and trust the Universe to do the rest.
Funny idea that I could be the one to assist my cat with his own progression. Never thought of this.
2D pets can exist among 3D humans, why can't 2D pets exist among 4D humans?
I have no idea, but if my dog can't come with me, I'm not going anywhere!
I can't imagine that gaining more psychic strength and greater compassion and consideration for others should require or motivate one to abandon one's 2D companions. If anything, the opposite should be the case, such that one will become closer to them and become even better able to care for them.
Thank you for comforting me.
There are a lot of interesting discussions about animals in the 'Our 2d Friends' section of the forum, you might enjoy reading through some of the threads there :).
Thanks for suggesting! :D
The Wave End of Chapter 2:
The following excerpt from the Cassiopaean Transcripts brings up a very interesting idea. The Cassiopaeans have suggested that there is a soul evolution, which is facilitated by the works of higher densities. Apparently, souls “grow.” After eons as say, rocks, they evolve to become plants. After aeons as plants, they evolve to become lower animal life forms. After some period as this or that type of animal, they may graduate to a higher or more intelligent animal which has some sort of interaction with human beings, and after numerous incarnations of this type of interaction, they advance to become the “lower level souls” of humanity. At this point, they begin incarnative experiences through the human cycle in third density until they come to the point of graduation to fourth density.
March 4, 1995
Q: (J) Is there any significance to the fact that one of our cats has been looking like she is really trying to tell us something?
A: One of your cats, no, make that 2 of your cats, are close to transition to 3rd level.
Q: (T) Sabrina’s moving up in the world, she’s going to get a promotion! (J) What’s going to happen to her when she hits third? She’s going to be a human?
A: Yes.
Q: (J) Wow. (T) When she moves from cat to human, her cat body will die?
A: Yes. We mean at next incarnation whenever that occurs.
Q: (T) Two of our cats? They are third density “candidates” like we are fourth density candidates?
A: Exactly.
Q: (L) Does that mean that when a person is a fourth density candidate that they have to leave their body to go to fourth density?
A: Yes, unless they are in the body when the wave arrives.
I just try to continue on my path - taking it one day after other. :)