I'm also interested! It seems like superhuman abilities are a focus here, but would a Batman-esque no-powers-but-many-skills archetype be workable as well?
Yes, it would work fine. To have someone be on par with their powered peers through sheer determination, effort, and perhaps some sweet 'toys' would play well into the pulpy feel I am attempting with the plot.
We're definitely starting more at the "street" sort of level, it seems like, but are there plans to end up at higher levels of character power/influence?...
I do intend on there being opportunities for the characters to grow in some way. Perhaps with time they have found new ways to utilize their abilities, perhaps their abilities may have just gotten stronger, perhaps they might have 'branched' a little into supporting abilities to complement their main one. The current plan for the plot is that it will either 'end' somewhere around 'cosmic level threat' or 'threat for the b-team'. Depending on how everyone wants to go about it, we can fight the threat before or after it is 'too late'. The focus at the start is the street level for sure but I am willing to alter the pace to some degree to ensure everyone enjoys the RP.
I do have some general character ideas more on the cyborg/technology powers side of things, and might need to figure out just how much ridiculous scientific progress is likely to end up acceptable.
As I have mentioned, Pulpiness is a core trait to the story so there is room for 'weird science'. Whether it be reverse engineered alien tech, future tech, or even combining tech with magic (the ghosts always laugh till they realize you got enchanted bullets). How ridiculous it is only means how creative you will need to be to explain it.
In most cases, rule of cool takes precedence over reality. So long as I don't need to ignore too much of what is plausible (as far as hard concepts like the laws of physics go), it should be fine.
And on antagonists, one fun thing a tabletop superhero game ended up doing is sort of every player had one bad guy associated with their character that they cooked up, and one that someone else did, which was a pretty fun little exercise.
Optionally, I am encouraging everyone to custom bake one villain to be their 'core' antagonist (I will provide a specific CS for them later). ideally someone their character has had history with. I am thinking that later down the line PCs will get an additional stronger antagonist as they grow in power/influence. But to have someone else craft the second antagonist might be a good idea.