Hm, let's see (IPs with 3 or more entries and completely sales unrelated):
Might&Magic - pretty much dead since late 90s, recent Ubi half-assed attempt called M&M X Legacy was not very good...decline
Gothic - hopefully still alive, but practically dead since 2006, with Gothic III being good, but not as good as Gothic 1/2...decline
Fallout - proper Black Isle Fallout has been dead for a long, long time; in addition Bethesda's made sure that everything Obsidian improved in NV was scrapped for FPS-RPG bollocks in FO4 which makes me pretty determined to skip any further FOs ....decline
Tomb Raider - Underworld was last TR game that was actualy TR; my contempt toward Reboot is well known around here, so I won't even bother...dead
Combat Mission - this one is surprisingly still alive and kicking
Zelda - if Zelda U is half as good as people are hoping for, it will be better than most Zeldas...guess on the rise.
GTA - sales are rising, but for me GTA is not so great anymore; GTA V was much better then IV, but nowhere near San Andreas and earlier games....decline
MYST - This IP is no more. It has ceased to be. It's expired and gone to see its maker. This is a late IP. It's a stiff. Bereft of life, it rests in peace. If you hadn't nailed it to the perch, it would be pushing up the daisies. It's rung down the curtain and joined the choir invisible. This is an ex-IP.
Battleground/Campaign series - nothing but dust remains
Warcraft (RTS) - it was on the rise, then put on ice - maybe someday it will be revived
So, I guess pretty grim picture for my favourite IPs.
