I just want to bring it to your attention that 'Nuhi' who made nlite years back, has released a new software for Win 8.x and win 10. So winter has some competition now.
His tool comes in a free as well as a paid version, the former having a few limitations. The paid version lets one remove stuff from an already installed Windows. Is there any way to incorporate that feature in winreducer?
Presently his program is very buggy and nowhere as evolved as winreducer, but you should take a look at it - it has some nice features that you could bring to WR.
The only advantage I can see for ntlite over winreducer currently, is that ntlite's interface appears to be more descriptive. To somebody using both softwares for the first time, ntlite would seem to be easier to use. (Although if you are familiar with winreducer, that advantage does not exist.) It is also easier to use, since it does not require downloading of external files. To a new user, such things might matter.
One feature that I really suggest should be put into WR is displaying how much space is saved on removing each component.