It's only a question for devs!
I remember for OFP that T&L was adding after the release of the game, and severals enhancements of the engine too.
Dynamic LOD can be done with heightmap and PN-Triangles Tesselation. It can be a plus for nearest details and reduce the number of triangles calculated far away in the field of view, with less clipping and a better performance.
As it is now the heightmap cause problem for ground detail, with a sort of wave.
With the tesselation we can have better details for near objets, characters, terrain and have less triangles to calculate by the GPU. This dynamic LOD works fine and with good performance.
So do you think you can do it? ( only devs please for answers! )