Fantasmic! hasn't been down in the last year. It has been up and running since July 2017 when it premiered the new show.
Knowing enough about it, no. Several pieces were special made and still have not arrived. Computer boards were destroyed. It isn't just a "Fix it" situation, it is a rebuild. And think about it from a building standpoint, it is easier to start fresh than to start with something, and have to take that down, and then put the thing back up. Disney would have LOVED to have had it back for Christmas season, to draw crowds there from DL.
Also 9 mos is a mistaken date. It was due to reopen June 22 and it was close to reopen when the accident happened. (I wouldn't have wanted to be there that Monday morning.......) If they had any idea this was going to be this long, they would not have paid big $$$ to put together the Halloween show for Sept/Oct.... So the repair is now at 6.5 mos.