Yes, please send the 'expired' I-94.
Dude,
My EAD is expiring in Oct. 06 and I applied for 3rd EAD renewal in the first week of July 06, but my I-94 has already expired in Mar. 06. I sent a copy of my I-94 and the EAD got approved 3 days before and there were no issues.
Hope this helps!