Apologies if this has been previously floated: It just occurred to me, looking at the pic of Dave Combes' "A Difference a year makes" that the blue grill / strips running along the front edge of the secondary hull / nacelle pylons (if you can call them that) look to me to be deflectors, running either side of a central navigational deflector dish. So at least two forms of deflector tech, or at least two different looking manifestations of the same tech perhaps (glowing blue strips type, and a yellow dish type).
In a way, these two different types of deflector are combined in the example of the Kelvin timeline 09 1701 Enterprise, which has a yellow navigational deflector, with a glowing blue dish concave interior.
Back in the prime timeline, the TOS connie simply has the yellow navigational deflector (with no blue glow), and TMP 1701 Refit, has an orange glowing deflector dish at impulse, and turns blue when the starship is at warp.
So, in the USS Discovery's case, it appears that the deflector components are separated out each other, rather than combined (as can be seen in other examples of the 1701).
Alternatively, if the glowing blue strips / grills are not deflector-related, then it's likely they could be nacelle grills, akin to those on the 1701 Refit (TMP), positioned on the leading edge of the nacelle wings, rather than on the nacelles themselves (unless the wing is considered part of the nacelles themselves).
Anywho, excuse my rambling musings - just mulling those images...

In a way, these two different types of deflector are combined in the example of the Kelvin timeline 09 1701 Enterprise, which has a yellow navigational deflector, with a glowing blue dish concave interior.
Back in the prime timeline, the TOS connie simply has the yellow navigational deflector (with no blue glow), and TMP 1701 Refit, has an orange glowing deflector dish at impulse, and turns blue when the starship is at warp.
So, in the USS Discovery's case, it appears that the deflector components are separated out each other, rather than combined (as can be seen in other examples of the 1701).
Alternatively, if the glowing blue strips / grills are not deflector-related, then it's likely they could be nacelle grills, akin to those on the 1701 Refit (TMP), positioned on the leading edge of the nacelle wings, rather than on the nacelles themselves (unless the wing is considered part of the nacelles themselves).
Anywho, excuse my rambling musings - just mulling those images...
