You have a lot of models coming your way! Thankfully, Nids are fast and fun to paint.
From the models that you listed, you have a very fun and fluffy nid list.
Nids some great spells right now, a 5+
FNP, and one that allows their unit to shoot and charge if it has advance. These tools are really important for protecting a giant squad from a scary attack, or you could cast it on your distraction units
Also, smite on a flyrant with damage rending claws in
CC is super gross
All you really need now are the support units that match your flavour of play.
Biovores for long range/objective camping/spore mine generation/, mawlocs and/or licktors for first turn assault possibilities... nids have a lot of fun tools to experiment with. Read through the index and let your mind wander with awesome possibility
happy hunting!