The ms5607 and ms5637 are very similar to the ms5611, so it should be very easy to add support for them in a single driver.
The differences are:
The ms5637 only supports address 0x76
The ms5607 and ms5637 have slightly different conversion equations
The ms5637 supports an oversampling of 8192
The ms5637 is only I2C, but that's all the ms5611 driver supports anyways