Quote from Chiyuri;1094902:
Going free to play is just postphoning it -.-
Depending on the free to play model they go with that is not always the case. Dungeon and dragon online went from almost dead (P2P) to quite thriving and profitable for the company (F2P). Then again Turbine has one of the best free to play model for their past pay to play game, where you can earn cash shop currency by playing the game. Albeit small, with enough effort and time you could literally get every item for free.
Just depend on how bad a company make their switch really. Looking at RIFT FAQ it doesn't seem like there's some bad restriction to free to play so it might actually help the game become more popular really.