Depending on how the enhanced starfall/sunfall works that might be the best choice for 5+ targets. Insect swarm could work well on encounters with 3-4 adds where you can constantly multi dot without having to worry about NG running out because you'll get the solar/lunar power from IS. Equinox looks like a decent option for ST or cleave situations because you can dot before heading into your next eclipse and haste is no longer snapshot so it will benefit from NG when it procs and which point you can then cast your eclipsed dots.
Obviously we'll know a lot more once we can math each one out but looking at it there's definitely potential for all talents depending on what situation you have.