WW, I believe scripture is complete to at least the end of this Age (and it appears, to the end of the next, but I'm no scholar). But when it comes right down to it, I sure don't know exactly what God's going to do or reveal in the next Age, or the next, or the next. I do believe that at least until the next Age, "thus saith the Lord" has occurred, and anything that's revealed to us, shedding new light on His Word, unveiling us, etc. up until that time, will be in accord with the scripture we already do have...
God's blessing, James.