TD doesn't sound that dated to me. OOTB is the most dated one for sure.
Only some songs have dated tbh. In order of most dated to least dated (at least to me):
1 Who Am I Living For?
2 Circle the Drain
3 Hummingbird Heartbeat
4 Peacock
5 Teenage Dream
6 California Gurls
7 Firework
8 Part of Me
9 Dressin' Up
10 E.T.
11 Wide Awake
12 Last Friday Night (T.G.I.F.)
13 Not Like the Movies
14 The One That Got Away
15 Pearl
(I used the TD song sorter and just voted for the "more dated" option each time)
Her ballads seem to have aged the best for me. It gets a lot of hate, but listening to Pearl, it's still so fresh. Really stood the test of time so well. It could fit right into the second half of PRISM (and actually be better than most of the songs).
When are we gonna get this year's version of this? Doesn't even have to be a video, just any indication she's in the studio please
PS. Does anyone recognize what she's singing in the video? I know it's only like a few seconds of song and it was probably just a PRISM reject but it sounds familiar for some reason
I always cry inside when I watch this video. Ghost sounded so damn good just like that.
Unless she dies or something, no.
she has another 30 extra years, after all she is the modern Madonna and the Female MJ 
Staple.