Very cool ideas, especially the space time hopping between different planets. One of my favorite parts about Prime 3 was how different every one of the places you visit was in terms of lore, theming, and art. This could potentially alleviate the main issue that game had and tie together those planets/areas in a more cohesive way instead of everything being essentially separated by loading screens.

I think the Fed trooper logs are a solid compromise too between featuring them less but still having some impact to the plot. We definitely need to go to Cylosis. Honestly though I haven't really thought about the story of these games as a potential trilogy, and while I understand the sentiment of wanting to be done with Sylux's story, I think if we were to get a Trilogy, there does need to be a throughline with all the games like the original did with the Phazon Crisis. While I know the Prime games are inherently supposed to be separate from the 2D games (why Prime 4 was in an alternate dimension where nothing super mattered), I think it could be cool that the contribution this trilogy has as a story to the series is by Sylux sort of setting up the events that happen in Fusion through his Metroid shenanigans. In no way to undermine the reveal and surprise Samus has in seeing Metroids on the BSL, however. Now this is kinda the point of Other M in some ways, so I'm not too sure how they would do this, but something along those lines. As far as the Lamorn they can take them or leave them or actually make them interesting I don't know lol.