+1 for NDI support for livestream.

It would amazing to send just lyrics and bible verses to another computer/platform to overlay on a livestream video.

Yes, with transparent background please

I just posted a similar idea (Video Stream Display) and have see a few since posting mine. Something like this would be a great feature to have on WE.
(Mine was a separate display like to Stage Display but for a video streaming feed.)

Our current livestream setup is using Propresenter 7 sending lower thirds as a transparent NDI output to our livestream encoder which is Ecamm. This set up is easy and gives us no issue. Because we started using MusicStand on our iPads I would love to switch to Worship Extreme presenter but we are waiting on similar NDI applications such as Propresenter 7 has. Would love to see this added to WE Presenter!

Are there any updates on this, or an approximate timeline for when we can expect an NDI integration?

It is included in the new version of Presenter, coming later this year.