Yeah, developers over at se-nse are working on CID53 patching using XS++.
Isn't it you can already flash CID53 using Den Po's JDFlasher (only flash, not fs)?
with FAR + JDflasher plugin you can do everything with CID53 phones except patching (so you can change icons, drivers, flash main, flash FS and offcourse CDA flashing)