Sliced bread has come out. Jk, given the time taken for someone to answer you, nothing new has come out that's earth shaking. Other than new firmware. If everything works for you it probably isn't worth upgrading.
You're on mdl which allows you to flash a number of different roms which you aren't taking advantage of. The latest firmware, nc1, is rootable with towel root. You can flash touch wiz based roms but that doesn't seem to be an interest to you So you might consider updating to nc1 if you want the latest firmware. But many people would like to be in your shoes with mdl firmware.
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