This is a request I doubt will be granted, SE has concerns far bigger than having "Challenging" content at the moment, and battle changes could throw everything in dissaray if they made anything "Challenging" right now.

Wait for the combat balances to be finished, then you can try asking for new content. Otherwise I suggest you take a well deserved break from the game for a while because the games not going to cater to you for a good while still.