David Ramsey has been part of Arrow since the beginning. As John Diggle, he has been Oliver Queen's (Stephen Amell) bodyguard, best friend and now replacement. The actor took to Facebook a little while ago to do his first Facebook Live chat at the urging of Amell… and he is either pulling a joke on fans or he was a bit to free in answering questions. I'll post the spoilers he said below, after the image… don't continue on if you don't want to know.
First he was asked about the return of Tommy… which for Arrow fans means Tommy Merlyn (Colin Donnell). Ramsey talks about having just seen the edits on the Crisis on Earth-X crossover between the four Arrowverse series and referenced that saying we'd be seeing Tommy very soon and he is great… it comes across that perhaps Tommy is either that Earth's Prometheus or possibly their version of Green Arrow.
When asked about Thea (Willa Holland), who is currently in a coma, he responded by saying Thea is going to be just fine.
Then asked about Colton Haynes who played Roy Harper on the series. Ramsey talks about how he didn't get to go to Haynes' recent wedding because of reshoots and that we will be seeing Haynes on the show in January. It was though he might be in the crossover as one of the archers, but this indicates that it will be the regular Roy that we'll be getting… (could he be Vigilante?)
Asked about the villains for the season he talked about how each member of Team Arrow would have an opposite on the bad guy team and that Juliana Harkavy's will be one of the toughest in an emotional way. Harkavy plays Dinah Drake aka Black Canary and it's been rumored that her ex-partner/lover might be the Vigilante… this might be tied to that idea.
And finally someone asked him if Felicity (Emily Bett Rickards) would be able to fix Diggle's shakes… the nerve damage that he's currently using drugs to cover. Ramsey replied that if anyone could fix him, it would be Felicity and Curtis (Echo Kellum). Since the end of last week Alena suggested that Felicity and Curtis should try and manufacture the chip that Curtis made to allow Felicity to walk after being shot, it stand to reason they'll make a chip to fix Diggle.
If all of the above are true… that's a ton of spoilers and I have a feeling Ramsey may be getting a 'talking to' from executive producers.