Rift is going F2P effective 12 of June 2013. You get all the stuff what the subscribed players have now, but they will get the 'patron' privileges which is somewhat nothing much. Players are basically grinding Raptr. hours on rift to get it for free atm. With wow too you have the lvl 20 cap, provided you tried almost everything that you can try i do think it is somewhat enjoyable. I find IA on rift interesting and so as the rift closing activities either solo or in party. I have to say Rift offers a slightly different aspect of activities to do when you go questing so its somewhat not a mundane, run here run there thing.

Tho my complain about rift are that lack of addons and lack of quest guide, data. I was scratching my head to find the exact remaining 11 quests that I failed to find anywhere in scarlet gorge and it seems that it is possible for that to happen on rift and without proper info/data that's hard/difficult to find out. The other thing that I found out is that, majority are former WoW players, but surprisingly all of them stopped either during BC or Cata and a portion said they tried MoP then left. Nobody actually dared to answer my question if they had actually tried doing MoP dungeons, raids and scenarios which offer a different kind of approach and experience during engagement. So I'm assuming they rated WoW simply based on Cata/WoTLK and not really the latest content.

Rift ppl are a bit nervous about the ability of the servers to cater floodings of ppl and fluctuation of bots when F2P goes of which would highly effect the ingame economics. And also the community dimension would definitely change as anybody can play and ruin the game experience for you. And since Titan is still 3 years away, blizzard have to come out with new ideas constantly to keep their clients interested unless Rift F2P becomes a fail. Trion took a big step going F2P but whether it will eat WoW or somehow benefit WoW, only time can tell.