No, the community is fractured as others have pointed out. 4e maybe attracted new players but lost some old ones and then Paizo showed up and picked up the stragglers. You essentially have a 4+ way division here. A new "edition" would simply split things even more.
Though I don't interpret Mike Mearl's musings as much as a new edition but as a new approach to this community division. Cull a base system from the various rule sets, center it on things they all have in common (the attributes for instance), then create plug and play "modules" (terrible choose of words BTW).
You want the 4e style Powers module, great - you prefer the 3e Spells/Feats module, ok. You want just the basic classes and attributes, that works too. The ever popular 3e Grappling module? Sure thing. To me, that's not a new edition, it's just a re-marketing of old content (or hosue rule stuff) which is re-designed in such a way as to integrate with each other.
I've toyed with the idea of creating
a new edition for my own enjoyment and even as a simple hobbyist my ideas have seen some contempt hurled their way - before people even understand what the rules entail. If WotC creates a new edition or "evolves" DnD down any new path, they are sure to be subjected to blind, abject hatred whether the new edition is a good game or not.
However, that may be what needs to happen to take RPGs into the future. Maybe everything needs to be modular / pick and choose and sold piecemeal on a website. Maybe dinosaurs like myself that like the smell and feel of books and like to see people's faces (and have them in dice throwing range...) NEED to be weeded out of the hobby for it to once again be "successful". Who says pleasing everyone is what they are even after?
Locally, I can't find many people playing DnD at the shops. 4e games surface every now and then and fade away. My FLGS has been running a Pathfinder night, but they don't want to allow people to run anything else - they can't seem to keep consistent players for 4e and obviously there is no money in 3e. I'll stomach it because Pathfinder is -close- to what I normally play, but I still don't care much for it. (Too clsoe to the same thing and I am not one of thsoe people that demanded every class get some new ability each level or it was "broken"...I'm constantly finding people can't keep up with half the crap their characters can do.)
As noted, with all the edition debacles, I'm either rmaking my own system to run which is similar to DnD and creates the experience I want from it, or I am seriously considering dialing back to 2e or earlier. Sure, I know, there are other RPGs out there but regardless the company decisions I am a solid fan of DnD in one form or another.