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I genuinely can't understand who thought this ride was a good idea. It doesn't appeal to standard Chessington goers (too tall a height restriction despite not really being a very "thrilling" ride). It takes away from their neighbour park's claim of "Only UK Wing rider coaster". It will likely have an extremely bad throughput. It's a B&M so will have an extremely expensive initial cost. It's a B&M Wing Rider so will probably be quite slow through the elements as well. The layout is already shown to be far too short. The only positive (and even then, slightly) thing that can be said is the likely IP, whilst extremely outdated, at least fits Chessington and isn't completely random (I think everyone at this point knows it's going to be Jumanji). Me, personally, I would have have put a Vekoma Suspended Family Coaster or something that can accommodate a much wider range of people (height restriction-wise) whilst filling the need for Chessington to have something slightly more thrilling than their standard line-up. This must be one of the few rides in the world where there is a unanimous hate towards it because it just doesn't fit. If I were Merlin I'd go back to the drawing board for this one because it will be such a waste of space and money if they plough through with it.

From an engineering perspective it is likely to be mandated that the structure survives 25 years. Where the pieces of track are deemed replaceable. Non replaceable parts will be designed for atleast 50. Fatigue issues in steel start occuring at 2x10^6 load cycles which rollercoasters will start hitting around 25-30 years old. So if we assume 240 operating days a year at 8 hours. In that time lets assume perfect capacity for nemesis of 37.5 dispatches an hour. It would result in a lifespan of 27.7 years. Time to hit 2,000,000 cycles. Colossus - 24y Nemesis Inferno -29y Stealth - 19y Saw - 21y* You can design for more cycles. The eurocodes permit allowances up to 5x10^6 but it requires the stresses in the steel to be low. Saw can probably get away with that hence it not being 8 years. I cant be bothered to work out allowable cycle ranges so for saw I assumed the maximum and the other coasters the minimum. Basically Thorpe park would have an expensive few years coming up if you couldn't extend lifespan in other ways. It would just come down to is it worth extending. Unfortunately for Colossus I think the answer is no.

If it ever starts being constructed of course. It's basically the same stage as we were when they first announced it. Merlin and others have fair grounds to complain that this project is draining a lot of funding and attention on actual existing things as opposed to fantasy with occasional new concept art.

Merlin are just trying to bog down their opponents with paperwork to delay them whilst they build their own 2023-2024 attractions. I don't think they expect their attempt at this to be successful however considering the government has taken an interest in it. Matt N's link above is the same as this: https://riderater.co.uk/9543/merlin-calls-for-withdrawal-of-london-resort-plans/

I can’t help but think this ride is going to do more harm than good. The queues are going to be horrifying on anything but quiet days.