Wonderful image, for sure! One of the best dark sky deep integration objects there is, so much stuff around the core.
Regarding the core, it is possible to do HDR combination and then use HDR compression techniques to preserve more of the core while still bringing out the faintest outer details. It's a challenge, for one you may need two additional sets of exposures (one set short enough to capture the Trap stars properly, another to capture the core at a level about half exposed as the subs that are currently blown out), and then you need to make sure you can linear fit each initegration to each other and combine them into a single HDR image (for which you may need 64-bit float to really preserve the full range.)
Processing to bring out the core can be tricky, to do so without causing strange color shifts and the like. I've tried this once...and I ended up leaving the core pretty bright because trying to compress it too much resulted in strange tonal and color shifts, strange shading, etc. But, it IS possible, if you can grab some additional shorter-exposure data with the same system next winter.