@allenallenallen333 It's not as good as actual higher resolution source raws, but waifu2x's denoise and upscaling can do a passable job. Here's an example, the CUnet model, denoise level 1 and doubled in scale:
https://www.dropbox.com/s/yq8m8yyl5xja60k/y14%28CUnet%29%28noise_scale%29%28Level1%29%28x2.000000%29.png?dl=0
Though obviously you'd want to denoise/scale before the clean/redraw/typeset rather than scaling the final product as I've done here.
The GUI version of waifu2x is easy to use and doesn't necessarily require an nVidia GPU (it has a slower software mode):
https://github.com/lltcggie/waifu2x-caffe/releases
Recommended settings are Denoise & Magnify, Level 1 denoise, 2x magnification size, "2-D illust (CUnet Model)" model. Output as PNG to take best advantage of the JPEG denoise.