As others have said, TES6 exists as nothing more than the trailer you've all seen, and a few doodles in Todd's latest notebook. It's far too early to get a composer on board. I wouldn't be the least bit surprised if even Starfield's lead composer hasn't been 100% confirmed yet (please be Marty O'Donnell).
Also worth noting, you shouldn't be bothered if Soule gets ignored anyway. After the success of Skyrim he started a Kickstarter for an album called the Northerner: Soule Symphony Number 1. He asked for $10k and raised over $120k. Estimated delivery was 2013. He took that $120k and poured it all into a new startup trying to create a tech successor to the MIDI sound format instead. The album has never been released. He ignored backers and hired an agency to correspond with them in his place, who were so bad at it they even copy/pasted comments from fans pretending to be from Soule, in the few times they ever posted updates at all. Soule himself seems to have wiped his hands clean of the project long ago as, and I shit you not about this, he has now started a Patreon to fund personal music writing. This guy has no shame. He used his TES fame to bleed his fans for their cash, spent it on something completely different to what he promised them, and is now asking for more of their cash on Patreon. Losing out on TES6 is what he deserves.
I came to post this as soon as I saw his name pop up. Being part of that KS turned me off from that site in general. They investigated it and found nothing wrong with it I guess. After years of waiting they started giving out refunds. I remember one story of a guy who spent his graduation money from HS (he aspired to be a composer) to one of the highest levels I think around $2500 to be in the studio with Jeremy. After years of emailing and posting nobody contacted him he said it was starting to effect his relationship with his family they freaked out at him spending all that money. I wouldn't support anything this thief is a part of.
edit: People on Pateron are paying him almost 1k a month right now?? WTF I can't believe it.