What if WW makes it so that when the Mc next evolves the Eye "fuses" with him in a way that would not result in a dead end and his personality being fully erased ? I mean the Eye's influence has grown so much that it can sense things and whisper them to the Mc. Like it did in this update when talking to Deus and Bernhardt.
Personaly, I believe the last time the Eye reincarnated and got promply smacked by Bernhardt, he could have been strong enough to challenge a Chosen, and mostly everyone other than the captains. Given it destroyed Hex's dimension, and even Bernhardt noted how powerful it was.
So if WW writes the next evo in a way that the Eye grants the Mc another powerboost ( biggest one yet ) and this time without erasing his personality but rather forming even more of a symbiotic relation ( well, more than they already have anyway ), I can see him plausibly being able to defeat level 5s, Chosen, or S class monsters, maybe Indra included.
Hey I know it may seem like a stretch, but let's be real here, it took this long to get to almost level 4, thinking of how much longer it would take to reach level 5 is depressing. The Eye hacks is I think how WW will speed up the Mc's standing in the world hierarchy.
That's actually a genuine good route to take, would be a bit risky though, in the meta sense, as MC would jump quite wildly in Power, like, Malik, Bern and Henri were stronger than Elijah/Kira(Final Evo) while being on their fourth, this hypothetical Fourth Evo EyeMC would be even more yolked than the trio in that same level, still, WeirdWorld might be able to pull it off, plus, it would tie with what the Eye has been telling MC on this last updates, a week, a week, finally here, plus with Goliath and the other three S-Class, even more with Malik squaring up against an Outer Space Goddess out there, a Power up so great might be more of a necessity than anything, maybe.
About your mention of the EyeMC that Bernie killed, yeah, that EyeMC was leagues above Eisheth, Bernhardt says as much, probably not as strong as a 'Normal' Deity(Apostles are listed as Gods rather than Greater Monsters), since it chose to flee Earth, while the Wasting Mother is actively fighting Malik, but definitely far above Monsters, another thing that could work, is a fusion that does amp MC a ton, but without reaching the level of EyeMC off the bat in exchange to maintain his self, in that case stakes could still exist, with MC taking a front seat and having a sure path for the big leagues that wouldn't take decades.