Not that I am aware of. I have had some Skype meetings for various things, but not like the franchise summits.
The whole ‘summit’ thing is being taken a little too literally, I think. DC doesn’t do a lot of that sort of thing, at least not now. It tends to be more discussion at dinners when we are all already at a con, or improvised get-togethers. The Marvel retreat is a bigger, more organized deal.
Just different ways of doing things, is all.