Hi, Bumble!
I've stumbled upon your topic several days ago, and wanted to share my thoughts here! I'm more of a lurker on maxcheaters for half a year or so now, occasionally reading some topics, but your project has really interested and impressed me, so I decided to register and join the discussion :)
I think the idea behind L2Homage is awesome and it can easily become a very valuable tool for any person creating custom Lineage 2 server. And by Custom I really mean something new and unique - new concept of the game, new goals, new motivation for playing the game, new things to explore. I agree with your words in the first message, there are definitely ways to rebuild and reshape L2 world into something unseen before! I think in that way L2 can be seen as a "canvas", which can be shaped into something special and different than what the original game offers; we have pretty much a prepared and crafted world with an extremely wide variety of character/NPC/item models, ready interface, icons, animations, mechanics, etc. It is possible to manipulate all these things into a new concept, and I salute you for taking the initiative to create a tool to allow this to happen - it's amazing!
I would really love to help with a project like this, however I don't have programming skills myself, unfortunately; even thouh I work in a gaming industry, I am involved more with game design, economy and balancing, live operations of games, QA, sometimes marketing and analytics, and other related to that areas. I am not sure if it is possible to create a completely unique server concept by modding files and without any programming involved (please tell me if it is!), but surely this tool would in any case help with a HUGE portion of work that would need to be done to make it happen. Over past 13 or so years, I played on some modded servers, like the Russian BSFG and several others that are more about the RvR idea (I guess BSFG was one of the first ones, it's beta was around 2006-2007 as far as I remember), and for them to make it happen, for sure they also had to put countless hours into modifying files. Streamlining and optimizing it, making it a lot more error-proof and user-friendly, is totally a noble effort, and I do hope it would help cool new projects to emerge :) I would love myself to also work on a new and unique server like this, more so with the help of L2Homage.
Even though I cannot help directly (but if I can do something, let me know, I would be glad to participate), I hope this small note of motivation can help with going forward with the project. Looking forward to reading future updates!