The Five(ish) Doctors: Reboot was a special that Peter Davison had the initiative of making. It was great, but all credit to him, and whoever appeared in it.
The Time of the Doctor was a Christmas Special. Technically part of the 50th year, but not of the celebration. In other words, the BBC would've made it regardless of the 50th.
Night of the Doctor was a mini-episode, which Moffat insisted it happened, which means it wasn't part of the immediate plan. Plus, its honestly so essential to the plot of Day, that its practically its available-seperately prologue (at least, I do - I can't watch Day without Night before it, and if I re-edited the story for any reason, it'd be to add this to the narrative proper).
Honestly, only Big Finish celebrated DW in a meaningful ways. The Light at the End was Big Finish's celebration, and while story-wise Day wins, this has nostlagia all over it, and for a celebration, you kinda want that, as well. And not to mention, Big Finish also did a wonderful Companion Chronicle trilogy starting with The Beginning where Susan details her and the Doctor's first adventure away from Gallifrey, and the 1963 trilogy featuing Doctors 5, 6 and 7 respectively. And if it weren't for some delays on their part, Dark Eyes 2 would've also been out in that year.
Basically, the BBC only did An Adventure in Space and Time and The Day of the Doctor. Thats all. And while they're both rather fantastic (especially Adventure), the BBC should've done more. Its not because of lack of trying - the way Moffat struggled to have DW properly celebrated, when the BBC originally only suggested a 60 minute episode to his unknwon-how-long-it-was-to-be version, and the snivelling contempt some of them had for the program really is telling. I remember reading at Planet Mondas or wherever else it was, that the executives that thought DW wasn't gonna be celebrated as much were genuinely surprised.
I still am that they were. How much out of touch can you be? The show's only gets more popular every, yet some dicks continue to underestimate it. Who said the BBC stand for fairness?