At this point, The Sisko is not even a glimmer in their noncorporeal eye(s).
Part of the problem IMO with all of the non-corporal beings depicted in Trek who live above the plane of our existence is they would be able to see the massive changes in the timeline
and I'd think both the Q and the wormhole aliens would be concerned this whole change would fuck up their plans for humans in the future.
It's an alternate reality. The one Q and the Prophets play with is still there for them to have fun with.