I currently hold a Surpass card (which I don't think they offer anymore)
When I log in to my account, I am offered to upgrade to the Aspire Hilton AMEX card.

It does not say anything about a sign up bonus.
If I were to upgrade would I get the sign up bonus? If not I would have no interest. If yes the point bonus may be worth it for me.
overall Aspire does not really add much for me other than a higher yearly fee and some offsetting credits..