Maybe but be warned that it can absolutely be a possibility because of what Sikorsky said in his ci-en posts.
Seriously, even looking just a little at the posts you can get a lot more information for each character/games, even if it's MTL
Yup, either Meiri gets resurrected or appear again with some magic shenanigans in some shape or form.
The combination of him feeling bad after some time and feedback he received about her he is thinking very positively about Meiri and possible appearance again.
He said so in a ci-en post.
Me personally I couldn't care less about Meiri.

I liked her persona but as a character she was a miss. I don't like loli body types and her dying off screen was very anticlimactic.
Sadly, Kirstin isn't even in the logo of the new game, So I think she will be a guest appearance, with 1 or 2 scenes at best... Even more proofs that the author doesn't really like Kirstin that much...Thou, he also said that it is just the first logo he made for the game, so things could change, hopefully
She had her own game already so I am sure that if she appears it will only be as a guest.
Then again Kirsten was the devs best game yet imo.
Proper RPG, stuff to explore, several NPCs and companions you could interact with, decent amount of content and most importantly pregnancy mechanics...like a lot.
Reminiscence was pretty short, the dungeon crawler aspect didn't do it for me and the battles were only decoration and a story device. Also very linear....and no pregnancy scenes xD
So far he had this content in every game of his so it felt weird not to have it. I love how he draws those scenes so it was severely missed.
As interesting as the story was....reminiscence as a game was their worst yet.
I had really hoped that we get something like War Demon Kirsten again with pregnancy mechanics and all the shenanigans but I don't think we will.
The next project is a short game (simple RPG // scene collector) about Noelle (magician friend of the princess) as Wein got as well (the female knight character)
The next bigger project will be a SRPG but I have a feeling that he will tone down pregnancy content since it will be more story driven again just by the nature of a SRPG alone. I don't think he will allow room for pregnancy mechanics in the SRPG project.
Oh well. Time will tell.