This is... far from confirmed. There's more evidence for June than for November.
But if it has been delayed to November, I imagine it'd be for boring, marketing reasons, rather than production reasons. Intention might be to delay it to keep it away from the album to make sure they're not releasing everything at once, not treading on each other's toes. Better for chart positions, better for hype, better for everything. Worse for fans, but mixed blessing - might mean we're closer to an album than we think. The CD and the DVD certainly seem to be signing off at similar times. Once you include the promo period, there might not be time to release them both this summer.
Again, though, it's very plausibly just a hollow grumble.