It's great to know that you're planning to release the entire (renewed) series! If you are keen on accepting some late (very late) suggestions, I would like to address some interesting points, that I deem significant.
First of all, contrary to what the video narrates, Nenya has no role in the dismantlement of Dol Guldur and its evil magic, because the One Ring had already been undone in the fire of Mount Doom by the time of the assault and all the Rings of Power had consequently ceased to have any effect whatsoever on the nature of Middle-earth. So, it should be wise to, maybe, do wholly without Nenya and even replace it with another ultimate ability that shall serve well in this context; she will only rely on her inner and true strength, stressing the might of the character even more. Another aspect: the actual words of Tolkien tell us that she not only threw down the walls of Dol Guldur, but she also purified the fortress and cleansed the entire Mirkwood, planting seeds and hallowed trees in the ruins.
Given the scarcity of the sources, one is inexorably obliged to bend things according to one's own imagination (it would be strange if it weren't so). Yet I think these aspects deserve to be represented in the most proper way