do the Senrai Maiden Packs ever go on sale?

https://preview.redd.it/w2xs87m8x5kg1.png?width=1920&format=png&auto=webp&s=6a0c0f4582ae6bb1cc298c9ae0e72b2ea5787238

I've been wanting the Leo2M4 and ive seen the default one with normal camo go on sale and I wonder if the Senrai Maiden will go on sale in the future since I much prefer the Camo on that one than the Default one, (plus I think it comes with the a pillow to make people mad)