"the next update of A6 will have support for many more dynamic lights per scene."
yeah , but in fact it will remain hardware limit of 8 real dynamic lights maximum simultaneously

In fact what is done is pretty simple in some AAA games :
baked lightening with lightmaps , so you can see 50 lights in your level simultaneously , the real lights associated ot each static baked light are disabled ,
and when you come close to one it is enabled so the lightening
is visible on your character or whatever.
Play Thief 3 to see it in action

in fact real dynamic lights are more used for day/Night cycle, or for nearest
weapons/magical powers effects or for a simple lamp a character would carry,
so study where to use dynamic lights.
A big trick like Doom 3 is using texture projectors

just try it's level editor,
a projector cast a more bright color texture to simulate lamp, a more complex
light with some shadows, it projects in level and characters (any geometry)
and that's lot lot more fast than real light combined to a real shadow

this is one big trick of some AAA engines

projected textures for ligths,
or shadows or decals(palm trees shadow or whatever).