To sum up my last post:
Race and Class and Mage/Templar stuff almost guarantees a 2nd playthrough for the interested, but 3-4 playthroughs is more iffy, and 5-6 may be unlikely except for the DA addicts.
I think it has more than what DA2 offers, but at the same time, it also has a lot of filler that may turn you off. Many players may retreat to DAO or even DA2 and forget about DAI, while others may find enough in DAI to warrant multiple playthroughs and will be willing to move forward into DLC and waiting for the next game.
For a Bioware game I'd say its middle of the road in about every respect. Not terrible, not fantastic. Deserving of its awards and addicting gameplay to people, but also not deserving of it and alienating to people. Seems to depend on you.
For replayability, it would have been much worse without racial selection, so good on Bioware for opting for that. (Just um, the Qunari seem iffy and the Male Elves may still need that model fix?)
I'm enjoying myself enough to look forward to DLC and doing a 3rd or even 4th playthrough in 2016-2017, so there's that. Its too bad that Bioware made mistakes, but I also don't consider it the gaming disaster (like the game or not; I kinda like it) that DA2 was, and I do think that Bioware both externally and perhaps often internally are noting their mistakes and will be continuing to work on them in patches, DLC, and especially the next game.. especially because they won't be dealing with a new engine for it.