There's a lot of underestimation going on. If you wanted to actually compete, you'd need to do one of two things, but before that you have to realize that making a game means you're going to find it really hard to actually enjoy what you created. People don't usually play their own games. I sometimes do but it's never for long and it's usually focusing on whatever mechanics I wasn't directly involved in creating. Anyway, the options:
First option: Use RPGMaker to continue the game from where it is now. You'd need an artist that can do similar art to Bo, which is a stretch. You'd also need people who are either masters of scripting in general or have specific knowledge relating to RPGMaker. At least above Koda unless you want more of the same. After that you would need them to study ToT's existing code because you cannot extend a system without understanding the system. That would take a long time.
Second option: Remake the game in something else. A simplistic engine written purely for this, or renpy, or something else like that. The first part of that would MAYBE be possible for me, but even if it is then you have to remake the actual contents of the game which would take a LONG time. You're looking at thousands in expenses for programming alone
In both cases, using any of the art or writing is going to be asking for copyright smashing. Also in both cases, you'd need people to have written consistency, so a good porn writer. I don't see much of all this coming to fruition.
HOWEVER. Here's what you could do.
1. People who are solid at RPGMaker could try joining ToT and helping. If they need the help, be the help.
2. You could make a new game, actually contribute to the industry instead of sitting on the sidelines. I've got my own plans to do the same. There's no need to make everything about ToT if you know what about it worked and why.