If you do the work, you maintain the work and you can show that the changes are an improvement then it will be considered for inclusion.
However, you are going to be hard pressed to show that changing the library structure to something else is an improvement. Your also going to be hard pressed to show that pluginizing this is an improvement. In most cases not special cases.
I would look over the existing threads about the library structure pull in all reasons for and against then start a non-development section thread to discuss. Go over each for and against and make a clear argument as to why your changes re an improvement. Then take in the responses.and re work your proposal.
Again the majority of users and developers are happy with the current implementation. There is little, not 0, chance of getting this accepted.