Default [Q] Samsung Galaxy S4 Zoom ROMs

Hello, everyone!
I'm a user of Samsung Galaxy S4 Zoom for about a month, and always had Android Phones that were up to date regarding software. Even by the manufacturer or the community.
But the S4 Zoom is stuck in Android 4.2.2 and the development thread is dead in its section of the forum. So I tought of coming here to request a LIGHT. Is there something that I could do to help a start of this? My phone is rooted, but it's the more succeeded that I have been regards this matter.
For dummies, the S4 Zoom looks like a S4 Mini with a camera on steroids, more or less the same specs. Hence I'm here to ask for it

Thanks in advance for any reply