You may as well open the everyday. You get 10k pts and a year of amazon prime (after $1000 spend) and it allows you to wait and decide what to do with your points. There is no fee so it doesn't cost you anything to keep it open.

Once the Everyday is open (not before) I'd just call back and tell them that the card is worthless to you since they got rid of the 15k MR pts for $30k spend. It might be worth mentioning that when they announced the cancellation of that benefit, they specifically said that they were cancelling it so that they could evaluate what new benefits would be more useful to their cardmembers, and ask them what new benefits you will be getting. If they don't give you a decent amount of pts, cancel.

That's what I plan to do (I already opened the Everyday card so I'm ready to cancel the PRG if the retention bonus is not good enough)