Default Question about unroot on 4.3

I am thinking of rooting my note 2. I rooted and did all kinds of roms when it was on 4.1 but now that on the 4.3 I haven't with the d**n knox bs they added, my question is if I root and a new update like for 4.4 comes out can I unroot and do the update?

Thanks for the info in advance

sent from my rooted speak & spell