I believe the opposite. I think this match up would go pretty badly for Sampras. I'm thinking it'll be a little similar to Hewitt vs Sampras but Djokovic is a better version of Hewitt.
Hewitt had better passing shots than Djokovic has. They were massively more consistent at least, you wouldn't see anyone go 13/13 at net against Hewitt in his prime (which Murray did in the Shanghai final). He is also better, in general, at coping with players coming to the net against him (although to be fair, this is laregely a function of much more practice and necessity). Djokovic hits incredible deep returns, he is an exceptional all round returner but his real strength is in putting the ball deep and taking charge. Hewitt's strength (again, relatively speaking) was keeping the ball low, making him a nightmare for serve and volley specialists. I agree that Hewitt and Djokovic are broadly similar players, but the nuances of their games are not good for Djokovic when it comes to facing the aggression of a Sampras-type. Further, when Djokovic is aggressive, the slice has proven to be one of the most effective ways of dampening that attack and gaining tempo in a rally as employed by Murray, Federer and Nadal (who picked up on the benefit of that play a lot in their Australian Open match this year).