I've never even heard of Omari Hutchinson. Is he supposed to be particularly talented? I would assume yet again he isn't seen as someone who has much place in the 1st team this season or next. From what I've seen RLC is likely to leave before the end of the window. Jorginho and Kante's contracts are up at the end of the season and instead of relying on 2 youngsters to replace them, it is more likely they would want someone they're more confident can definitely make the step up now. I seriously doubt they intend to use Gilmour this season considering he wasn't particularly impressive at Norwich. I expect he'll be going back out on loan. Mount can fill in in midfield sure but he's definitely at his best on the right of the attack and I would expect that's where we'll see him most this season. Gallagher I'd expect will get a lot of mins but from what I've heard in the pre-season and the bits I've seen he might not be fully ready to take over from Kante yet. He was great at Palace but I expect Tuchel will want the option to rotate him in and out at this stage. Kovacic will of course start every game he's available for. He does have a history of injuries which could recur and they need to be prepared for that just in case. Most importantly, which of these players can actually fill in for Jorginho? There are perhaps options to replace Kante/Gallagher/Kovacic but who can play that deeper playmaker role? FDJ would fit that role perfectly and be a significant upgrade on Jorginho imo, who will likely not even be a Chelsea player next season.
I don't even necessarily think they will get FDJ. I still think he'll just end up staying at Barcelona and take the massive wage he's due personally. I just don't assume that Chelsea aren't interested in him and I see plenty reason why they would be.