Re: If we will ever have a new Q who should play him other then DeLanc
Given that TNG supposedly existed in the same continuity as TOS, in-universe Q was around somewhere in the TOS era even though he hadn't been invented yet out-of-universe. Due to the changes in the timeline, there's no reason he couldn't appear earlier. I'm not saying it's likely, but it's at least possible.
Nutrek = The Original Series, for now at least.
Given that TNG supposedly existed in the same continuity as TOS, in-universe Q was around somewhere in the TOS era even though he hadn't been invented yet out-of-universe. Due to the changes in the timeline, there's no reason he couldn't appear earlier. I'm not saying it's likely, but it's at least possible.