Include support for Taichi Kawabata's CJKVI IDS database from https://github.com/cjkvi/cjkvi-ids . This one seems to have similar coverage to CHISE IDS but is more recently maintained, so it might be reasonable to use it as a new default and maybe even (pending license check) ship it in the IDSgrep package instead of CHISE IDS.
mskala 
Tsukurimashou Font Family and IDSgrep
Include support for Taichi Kawabata's CJKVI IDS database from https://github.com/cjkvi/cjkvi-ids . This one seems to have similar coverage to CHISE IDS but is more recently maintained, so it might be reasonable to use it as a new default and maybe even (pending license check) ship it in the IDSgrep package instead of CHISE IDS.