I haven't watched him much this season to be fair. Goalscoring midfielder isn't the first thing i'd associate with him.Rabiot is currently joint top scorer at Juve in Serie A this season. Only 8 goals though.
I think a lot of the games i've seen with him have been next to veratti or pogba and he deferred to them a bit for obvious reasons and kept his passing simple and safe. I dont know how that would translate to playing next to casemiro when progressing the ball is his main job. Moving the ball forward as well as Eriksen would be my concern more than goals or even assists in other words. He seems like a player who could play anywhere in midfield and probably a couple other positions and do a good job mind you. Against the likes of Arsenal where everyone is dreading how Eriksen will fare against them he'll probably be ideal.
I think he'd be a great option and great cover in other words. But the transfer muppet in me is looking for an upgrade on Eriksen which i dont think he is, more an alternative.