My initial thought was no it will not, assuming you mean you are checking out on May 1. The promo starts on May 1 so you'd have to be staying tomorrow night to get the credit. I too have a stay tonight as well that most likely won't count.

The language in the last promo states that you have to have your stay completed by 4/30. So maybe tonight is a weird promo limbo and you get no promotions OR hopefully we'll all get the new promo for tonight's stay.

They also added a FAQ specifically for this promo, but the question above was only half answered on the registration page.

Edit: from the FAQ

If I check-in before May 1, 2014 or check-out after July 31, 2014, do I still earn credit for that stay?
Registered HHonors members will receive a bonus only for the nights of an eligible stay completed during the Promotion Period, regardless of a check-in date before the Promotion Period begins or a check-out date after the Promotion Period ends.

http://hhonors3.hilton.com/en/promot...q/english.html