Hello and great evening, can you please add AVP2 to your game catalog? Since you have added AVP: 2000 Classic, you must also add the original AVP2 game to you game library. I hope you will see this message.

Here you go:
https://support.gog.com/hc/en-us/requests/new?product=gog&form=other

Problem Type: Suggestions

That guarantees that someone sees your message / request / suggestion.

Don't get their hopes up. No point in sending Gog a message since they are well aware of how much people want AvP2. Yes, Gog will see the massage and just tell them to go to the wishlist.

OP: here's the wishlist entry, add your vote - pretty sure Gog is trying everything in their power to obtain the game already though

https://www.gog.com/wishlist/games/aliens_vs_predator_2

If only it was that easy getting highly requested games added to the store. Sadly in reality things are much more complicated.