Great find! Looks like the changes (other than sign up bonus) are:
- annual fee now $450
- card is now a Visa Infinite
- Lounge Club becomes Priority Pass Select
- no more club upgrades
- new $100 off airfare discount, fulfilled through Visa Infinite (note that the T&Cs imply that you may be restricted to certain airlines or flights for each itinerary)
I see no point in holding the card if the club upgrades are removed. That would be an awful benefit to lose.