But that one would still be done even after Moshiach comes, no?
Interesting question. Probably.
But anyway the
Not if Moshiach comes!!
Was a response to
Will be bumping this thread a lot this year iyh! 
Which is only true in chul.
Though there are some other oddities this year too.
Purim erev shabbos/purim meshulash
Shabos erev pesach (so you get another three dayer, just not of the ET variety)
Lag Baomer is friday, like it was the year of the tragedy
Tisha beav is sunday (not nidche, but the erev tisha bav halachos are limited, and less/no dinim of shevua shechal bo Aylor)
And a full 8 days of selichos before RH
