I haven't heard of TF having "issues" on placement.
Honestly, my thought process however is on a few things. If 2023 is Super Nintendo World's grand opening, then unless if they do something permanent in TWDA, there wouldn't be much sense to do anything other than Super Nintendo World. Especially if it's the big marketing push for 2023. It's why I think the focus should be more present for things such as the completion of studio projects. If there is something in TWDA, I'd rather it just be a museum. Something like From Coraline to Kubo or The NBCUniversal Experience, has been heavily lacking and it'd be a nice fresh pace change. Not everything needs to be something for specific audiences ((Though I think more than likely, the only thing happening to TWDA is it becoming a flex venue for Halloween Horror Nights and when it is not in operation for Horror Nights; being not far off from the Globe Theater's use)).
Studio Tour is...however, something to think about. Though, I would argue they would've done some changes about now. The last time it was changed up, it was for the 2015 operational year with the Nighttime Studio Tour and Fast and Furious Supercharged. And before that, Fallon debuted in 2011 to replace Whoopie Goldberg after her five year run from 2006 to 2011. I think if they were going to change the tour hosts, they would've done so sooner than later (and it could just be NBC wanting to keep Fallon as a host to help promote The Tonight Show at the time). And with the conversion going on from gas to electric, I would've assumed had they desired to change the tour creatively; they would've done so about now.
Granted, this could be something we come back on later in the year--but I don't necessarily think there's much they can do. Save fixing the Collapsing Bridge (or getting rid of it) or finally prepping work on something over at the old pit stop area. But with Barham Gate and the accompanying Transportation project, I don't think the bulk of the studio changes will be on the sake of the Studio Tour. I think it'll just be of the studio's benefit.
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~~ My guess remains the same as it is currently: I think the focus for 2023 outside of Nintendo, will be on infrastructure and the major studio projects coming up. Maybe demolition of the conclave of soundstages next to Transformers and Mummy once Barham Gate's open up, and maybe starting work on the park's next big thing ((which I can see the case being made for a 2024 investment more than anything)); but it is Super Nintendo World's time to shine. SNW is going to rock waves, especially as it has the benefactor of no-one domestically being able to shell up the cash nor being able to travel.
It's the inverse of when Hogsmeade opened for Hollywood, when that had six years of existing on the other side of the country; this will be the first time for domestic audiences.