Given the size of the ROV and the length of time you have been out (and also your last 13 years have been spent in a non-technical – as far as ROVs are concerned – career) I would suggest given the amount of very technically qualified and experienced people also trying to get into ROVs that the chances would be slim.
If you had been doing electrics or hydraulics in the last 13 years I would suggest you would have a better chance as your experience back then may have helped, but without that I would say slim. Too many people after too few jobs. And the job would have to be as a Trainee as well.