The VOIDRUNNER'S CODEX is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
I'll add, that going through Tony's twitter feed, there is a lot of tweets about D&D, and not Magic the Gathering. And when I search "Wizards of the Coast Dragons" this image is one of the top in Google Images (and is used in Wizard of the Coast News Page), so I don't think this is MtG related.
Also, I really love how Tony's art has adapted. I honestly wouldn't like to see his original style recreated for Planescape, but his new style would fit that sweet spot of whimsy for me.