If Nexus Blitz succeeds in becoming a permanent game mode

Will you guys cancel trying to beta test other possible permanent game mode ideas you may have had? If not, how many game modes can succeed before you stop trying out new ideas? And how many ideas needs to fail before you give up trying all together? Really curious. :)

ALSO could you guys do a poll so you know which type of game modes the community would prefer? I personally would love a PvE mode.