There shouldn't be any issues because everytime we get chance to learn. Like in Ramanand Sagar's Ramayaan was very good but then when B.R. Chopra's Ramayan had so many new information like Why only Laxman could kill Meghnaad.
This Ramayan will also teach us some new views in their (Directors) perspective.
Please do not compare it. Likw in Ravan we get to see otherside of story.