It might be stupid to comment on something I haven't tried out yet, but if this mode is similar to RTS games like LoL, I can't see anything new. My opinion is kinda hasty though.
Hopefully they will give us the option to choose between stage and myth equip. It used to be so annoying, when people with myth gear showed up, while everyone agreed to use stage gear on BF.
I also hope that there will be enough players to play this mode in the first place.