There are a lot of factors that will determine ride length, and we really have very little data other than a building size and a rough idea of the water track. Given that the "assumed" ride system is capable of moving faster, slower, or even stopping at times, and that there may be section of the "track" that are non-linear, we don't really have a lot to go on. Comparing to Maelstrom has it's own issues. The middle (backwards) section moved quite rapidly compared to other boat rides, and it also had a drop, further increasing the speed. and it was a straight "trough" ride with no side to side variance that may be possible with the newer ride system. As this ride is supposed to very heavy on visual effects, I'm guessing that it will move slower rather than faster. Others, with a much greater knowledge of ride mechanics than I have, have predicted 5-7 min length. But until the first boat makes an actual "real-time" circuit of the ride, everything is (educated) guesswork....