Since Sense 5.5 is based on Android 4.3, they'll have to use android 4.3 . and currently, no tegra 3 device has sense 5.5 and porting from snapdragon is a real pain. So I don't think anyones porting.
Won't be possible too because of framework etc as it was told already it won't be possible get the htc one , mini or max then you will have sense 5.5 etc
Since Sense 5.5 is based on Android 4.3, they'll have to use android 4.3 . and currently, no tegra 3 device has sense 5.5 and porting from snapdragon is a real pain. So I don't think anyones porting.