Glad to hear that you are going to address long standing issues.
I have perfect solution for modes problem. YOU SAY THAT IF YOU SEPARATE ALL MODES MATCHMAKING WILL TAKE A LONG TIME THEN DO ONE THING. HAVE 4 SEPARATE OPTIONS FOR EVERY MODE PLUS RANDOM MODE.
PLAYERS WHO WANT TO SPECIFICALLY WANT TO PLAY A SINGLE MODE CAN CHOOSE IT AND HAVE PATIENCE WITH THE WAITING TIME. I'LL ALWAYS DO THAT.
AND THOSE WHO WANT TO PLAY INSTANTLY CAN CHOOSE RANDOM MODE WITHOUT WAITING FOR ANY TIME.
PLEASE CONSIDEER THIS AND ALSO CONSIDER GIVING 1 FREE HANGER SLOT TO EVERYONE.