If they are going for the family market (which it certainly looks like they are), getting Excalibur and Pirates Adventure running again could be a decent, and possibly cost effective, shout. Of course refurbing them could end up being more expensive than a new ride I've no clue!
Apparently workers could be housed on ships in the Thames. Not much of a story maybe but the press department keeping the plans in the public eye.
There's one in Duinrell (Waterspin). I had a go just as the park was closing for the day and the ride op sent us (all two of us) round several more times. I was not well, I'm clearly getting too old for flats!
Apparently I joined in April 2019 (I had to look this up), I'd visited the Coasterforce site for years but never really used the forum. The last theme park forum was Rideas in the early 2000's. I think I actually joined the forums so that I could save where I was up to and only see new content!