I think the first two episodes of X-men 97 have a bit more maturity to them than X-Men TAS, and they're adapting source material that rarely makes it to adaptations (because all of the "classics" like the Phoenix Saga, Days of Future Past, Weapon X, etc. were already handled in the original series.) They also hired a completely new showrunner/lead writer for X-men 97.
If they took a similar approach with a revival of Spider-man TAS, I'd totally be on board. Would love to see a season that adaptated elements of JMD's KLH, Spectacular run, or JMS Spider-man. And who knows, with Ultimate being as popular as it is now and with X-men 97 focusing on the Jean and Scott marriage, perhaps Marvel would be interested in adapting a married Spider-Man as well. It would also help differentiate that series from the MCU Friendly Neighborhood Spider-Man show (which would likely be marketed to a younger audience than the 90s revivals.)
I don't think we'd ever see the marriage era in a revived Spectacular unless they did a significant time skip.