And it's the one thing which annoys me the most about the Moffat era. Time travel hijinks are fine every now and then, but when it becomes a regular thing every season, even part of the running arc going through the season. Hell, everyone always wants to point out the Daleks are overused and the classic era went long spurts without them, well, what about this? The classic era rarely ever did a story which was actually about time travel, hell even the RTD era never really did one outside of the Moffat scripts. And now it's a staple of the show to the point that the term "timey-wimey" is itself a catchphrase to describe the whole thing.
I dunno... It's hard for me to complain about a show whose main character is a time traveller actually using time travel as a story device. Moffat does tend to fall back on the same particular paradoxes and tricks over and over, but that doesn't mean using the potential of time travel itself is intrinsically a problem, just that he could stand to vary his approach to it some.
Perhaps we will see the return of the Trickster, the Shopkeeper and his Captain.
I don't know about the Trickster. Gareth Roberts actually owns that character (presumably, he's written every episode to feature him) so Phil Ford being in charge doesn't mean we'll see him again. Hell, Roberts could probably have used him anytime in DW that he wanted.
I feel the Trickster was overused enough as it was. But the Captain and the Shopkeeper were kind of a dropped thread -- we never found out what the deal was with them. I wouldn't mind seeing them brought back just for the sake of tying off that loose end.
Of course, this is all based on an unconfirmed rumor, isn't it? They haven't actually verified that Moffat's even leaving, let alone who his replacement is, have they?