That is an unusually long time to adjourn sentence for. It looks like they're all on bail, and possibly living in Poland, so there'll be some practical issues for probation in interviewing and preparing the Pre Sentence Reports.
Under this year's Sentencing Act the judge can now make a Suspended Sentence Order of up to 3 years, which our heroes may well be in line for. But as part of the SSO there'll be conditions (probation, curfew, unpaid work etc) that won't be workable unless Polish probation are prepared to take it all on. And who will pay for that etc? What will happen when there's a breach of the Order? There's no point the judge sentencing them to anything other than immediate custody, in the UK, unless it's all in place.
So it sounds like there'll be some cross border sorting to be done. Nightmare.