Fox owns the title yet WB owns the engine. Darn Litech Talon engine. >.< So far it seems both of those have kinda forgotten about avp2 in general, they havent said anything about any updates/mods/etc. lately so it kinda seems like abandonware rightnow. Technically speaking, that is. If they wanted, they could have shutdown AJL mod years ago, which they never did.. AJL is running under modified sourcecode after all without anykinda permissions as far as I know.
So, with Litech Talon, do whatever you want. Fox and/or WB will put up their message if they want to, so far its been all good. At some point there was even talk about buying a better Litech engine to rebuild avp(2) but it seems it was a bit too expensive for the community to handle it alone.*
*Correct me if im wrong, thats just stuff I've read from different forums during the years?