From what I gleaned form Drakeford's comments yesterday, he's considering a number of options but crucially mentioned "before the end of the summer..".
I'm no fan of his so perhaps out of step with the general Welsh public, but it seems to me he wants to maintain as many restrictions for as long as he can. I think that we could well reach a situation in a couple of weeks where in England you can fly off to P.I.G.S. without quarantine restrictions on the way back, whilst here in Wales you won't be able to drive the 5+ miles to the airport..