So the devs are open to some changes - but they might not know what the effect will be on a global player base!
I suggest that if possible, a (temporary) L3 security clearance is created that allows those players with the pass to create and join games in which the new modified specialists/gameplay changes are added. Only players with the L3 pass can join, which can be gained via a code in the forums (after reading what the changes will do), or handed out by the devs themselves.
Then, after a time period (one month?) the testers will report their experience and the devs can choose what changes to keep and which to discard.
Obviously these games won't be ranked.
Opinions?