In my case, I had once had a Hilton card, and canceled to get another Amex. Hence no more bonuses on the regular Hilton card.
I can use a Hilton Amex card, since I points points with them, travel less, and with a credit card can get a few more to keep the account active (which was the major use of my CITI card with a small charge now and then.
I have two CITI Hilton cards, so possibly I would end up with 2 AMEX Hilton cards (bigger total credit lines), but I suspect they will give me only one.
If there was a CITI card I wanted I might apply for it, and then try to transfer most of the line to it. ( understand the only time they do line transfers is when getting a new card), but I do not see any I want, but do not have, and would qualify to get a bonus on.
In my circumstances, no longer traveling much, the new Ascend card does not appear worth the price.
However, a possible strategy is to try to get it, using a 125,000 point offer through The Points Guy, see https://thepointsguy.com/2017/11/125k-hilton-surpass-amex/
Reportedly, this converts to the Ascend card, which may be worthwhile, especially if you can use the Priority Pass lounge tickets.