Just thinking out loud here...
What would you guys think if SDC were to remove Lost River and put in an upgraded version like Infinity Falls at Sea World Orlando? That drop with an elevator lift looks like it is going to be something else and I think it would go over great with the SDC park visitors.
*disclosure* I am not saying Lost River will be removed, I just saw recent photos on Twitter of Infinity Falls and thought that it looks like it will be an amazing ride and then thought how awesome it would be to have a version of it closer to home
lol, hint hint.
To answer the question, I wouldn't be all that terribly excited. Lost River is nice as it is. It's not the best rapids ride out there, but it's better than many and is still very popular. I understand that there are apparently safety/operational issues with it's antiquated boats and station setup, but going to the expense of completely replacing it with a new ride would be money wasted, IMO. Then again, they are probably loosing water out of it just like most other water rides in the park... probably needs a new channel at this point anyway.
I think Infinity Falls is an example of kind of needlessly pushing the limits though... the tower will probably cause operational problems and downtime, and the big drop will make it less family friendly. Rapids Rides should be simple fun, IMO. It's nice to take the entire family onboard and only have the thrill of potentially getting super wet. Leave the big drops to flume rides.
At least it has high through-put.