but that's about to change, 'cause Stephanie McMahon tells TMZ Sports WWE plans to have fans in attendance at WrestleMania 37!!

“I’m thrilled and excited because, hopefully, this will be the first opportunity for us to have our fans back in attendance," McMahon says.

As far as the exact number of fans they plan to admit ...

Stephanie says WWE has a plan, but isn't ready to reveal the figure at this time.

The full interview with Stephanie McMahon airs tonight on FS1!