Grand Grandmaster
should new chess titles be introduced like elite gm

Title inflation is what would happen if new titles were introduced. Titles would be diminished in stature. @PloughBoyChess is making a good point here. It might not have translated well.

The expression title inflation might not have translated well. I borrowed it from grade inflation. So it's something I made up. But I think it applies here.
hmmm its a nice idea guys lets generate or voice so that fide hears us..
FIDE charges players to get their titles, so an additional level they can charge for might be appealing to it.
In addition to getting the rating and/or norms:
CM/WCM costs 50 Euros
FM/WFM 70
IM/WIM 165
GM/WGM 330
FA 50
IA 100
Trainer fees 20 to 50
Maybe FIDE would be happy to have S(super)GM/WSGM for 500 Euros
Giving FIDE a way to charge more money may increase the chances of getting a change made.
here some titles i thinka are good super grandmaster, ultiminte FIDE, funmaster, and international grandmaster wizard dragon slayer