Got some plants in late veg that are a light green/yellowish. Anybody have any idea why? Maybe a nitrogen deficiency? Attached videos 4 ref.

We'd need more information in order to properly diagnose. This post shows what to include in your post when asking about plant problems: https://www.mrgrowit.com/forum/grow-community/read-me-first

No it’s just new growth if its the tops of the plant