When I did an elective in one of the hospitals (im a UK med student), an MO I talked to advised to stay on if you are aiming for anything surgical, it is easier in the UK and had friends who stayed on in UK and were starting ENT training now while he was still an MO trying to get into his specialty. he preferred being in urban sg than having a training place somewhere in rural north east england

depends if you like UK life vs SG life as well