Yep, he's doing a bang up job of being Miggy. But if you're going by OPS+, not even Miggy finished a year over 200. Of course there's a lot of baseball to be played, but Vlad is over 200 right now. For the record, Trout hasn't finished over 200 for a year either. Whether Vlad Jr can or not remains to be seen but there's certainly a chance that he could.
They've moved him off 3rd but he also put in a tremendous amount of work to lose weight this offseason. I'm not sure if Miguel Cabrera was ever interested in that. If he can be an average first baseman defensively, that'll be good for the Jays. But it ultimately really doesn't matter, the bat appears to be that special.