Wilander always said that he tried to emulate Connors' game, not Borg's. I can't see that on the FH, they seem to have nothing in common on that side. Not sure what Mats would have meant specifically. On the BH there's more commonality. With both men, their DTL backhand was arguably their strongest shot.
But regardless of Wilander's style, I think that if he did base his game on Connors', then he must have studied it for years. And he would have ended up, at least, understanding Jimmy's game very well. Perhaps enough to give him an extra edge when they met.