Looking to rebuild speakers and need input

[saevox]

Currently I have a three 3 way speaker as seen in the xover attached. I plan to rebuild these speakers and was looking for input on any improvements to the xover. I was thinking about expanding to a wmtmw or wwmtm design and adding 2 more drivers to each speakers. I would like to stay with these drivers as i already have them. Although I did purchase these a few years ago without much research and if the setup just does not work, it just does not work. my concern is the midrange driver having too narrow a bandwidth. Please let me know if this is a worth while cause or if there are other drivers i could use to correct this issue from the prestige line that will match acousticly that would assist in this issue.