All BOWLS that have a 4-bolt mounting pattern will fit ANY toilet base...as shown in this ad on the sailboatowners.com site for the Raritan PHII/PHC "conversion:" sbo.com PHII PHC LBA
However, the mounting bolt pattern for any new toilet BASE never matches the mounting bolt pattern in the sole (floor) for any other make...and sometimes new ones of the same make/model longer match the mounting bolt holes for older versions of the same toilet.
So if you're asking whether your existing bowl will a new base, the answer is year. But if you're asking whether a new toilet will line up with your existing toilet's mounting bolt holes in the floor, the answer is no...with one notable exception:
The Raritan SeaEra Raritan Sea Era
was purposely designed to be a "plug and play" identical upgrade/replacement for the Jabsco 370xxx series electric
toilets, even down to matching the mounting bolt holes. An even simpler, less expensive solution, though, is a SeaEra "conversion," which lets you recycle your existing bowl, seat and lid (your bowl WILL fit).
However, it's not a big deal to drill a few new holes in the head
sole and fill a couple holes with expoxy. Touch up the ones that aren't covered by the new toilet with a little nail polish or, a bung if you have a teak