There are currently increased offers on the American Express Hilton cards:
American Express Hilton Honors Card No Annual Fee Card: 80,000 Point + Free Night Certificate
American Express Hilton Honors Business Card: 150k Points + Free Night Certificate
American Express Hilton Surpass 130,000 Points + Free Night Certificate
It seems that users applying through the following link: hilton.com/SeekingSummer are reporting no pop up saying they are ineligible for the bonus whereas if they applied through a different link they are getting the pop up (data points here & here)