Sadly, the player base at best will probably flatline, not increase, but with level 12's replacing level 300's and those level 12's won't have any respect for the game or other players having not played single player and having spent $5 for the game. How many of those new "standalone" players do you honestly think will last all that long? Once they realize that there's no space cannons or flying horses with lasers and that they have to either grind or pay real money for gold to open the roles up, they'll scurry back to GTAO damn quick lol.
Same here brother...level 430, 1150 GB and 225K with 170 full collections sitting, and at this point all I feel is relieved that with no more streaks, I can free up 1/4 of my hard drive for other more deserving games. Actually, giving up on Gran Turismo(1 car added in 6 months) as well frees up over 50% of my hard drive...hello Cyberpunk and Assassin's Creed.