-The suit the Doctor uses is a costume for New Year's celebrations (the Doctor lands in December 30, 1999) was found when he recently regenerates in the hospital, that suit resembles the First Doctor, also the hair is similar to him but without white hair and with a younger appearance
-There're a lot of references to the Fourth Doctor, like he found the scarf when he was looking for clothes, and in various ocasions he has jelly babies in his pocket and even uses the same words than Fourth "Would you like a jelly baby?" in a couple of times
-The symbol used for The Night of the Doctor and the army will appear in The Day of the Doctor already appeared in the Seventh/Eighth Doctor's TARDIS, the 8 thing
-Daleks are mentioned in the movie, first in the beginning when they "exterminate" the Master (the story begins when during the Time War, the Master was captured and executioned by the Daleks, but he wants as last wish that his rests should be carried to Gallifrey by the Doctor) where they don't shown but their classic lines are just heared, and later when he was trying to explain about the Master and mentions Daleks and the Time War

Some time in the middle I thought they'd change the future and Hurt would regenerate into Cappaldi. Well, they changed what happened to Gallifrey, but no Cappaldi... Except for that one split second close-up of the eyes with all 13 Tardises. That was cool. And the last image with all 12 Doctors was nice.
Aaaanyway. I thought this was supposed to be the last appearance of Matt Smith ? So if Hurt didn't regenerate into Cappaldi, will we see Smith do it, and when ? Even though Hurt started regenerating when he left, it didn't look to me like it'll go this way, so it should still come from Smith...

I didn't really care for Rose's character anyway, so even if that was a big fat red herring cocktease, I didn't mind. I was expecting to not like them forcing her back in the story anyway.
Wasn't Eccleston's line a footage from the 2005 series ? When discussing returning actors they referred to William Hartnell in the Name of the Doctor, and it was a reused footage with changed context so when we saw Eccleston I thought it was that. In fact, if you think about it, his line sounds weird in the middle of the other Doctors, it totally sounds like a context change.

Also, about the movie itself, I like the fact that it also fits with Tennant's last episode, Gallifrey being time locked, yet until before the movie everyone was talking about destroying everything, Gallifrey burning, but it wasn't actually that.
... Well I'll stop here because there's really so much to say about this movie that was good. Elizabeth and 10, the jokes, Bad Wolf, the 400 years of calculation... It's all great.

it was underwhelming because of the lack of iconic villains, like they expected a massive showdown like the Pandorica or the Demons Run events. I dunno, from the beginning I was expecting this to be about what happened at the end of the Time War, even without a big villain gallery. While it did prove lacking in showing us how exactly the Time Lords were basically the same as the Daleks in that war (we only have the Nigh of the Doctor to hear about that, and the Moment telling us it would judge the Time Lords all the same as the Daleks and it wouldn't be good), of course it totally delivered on how it ended. It looks like Moffat has been getting criticized from the start for playing way too much into fanservice, but it doesn't stop it from being good on what it does, being clever and funny and blowing our minds.

If you saw Night of the Doctor, the Eighth Doctor returns to Gallifrey and regenerates into Hurt's War Doctor. With that in mind, its then assumed that he then regenerates into the Ninth Doctor at the end of Day of the Doctor. So yes, we will be seeing Smith regenerate into Capaldi's Twelfth Doctor.