brussels eu diplomats start sketch brexit transition offer wednesday would probably let britain stay single market two years leave bloc march 2019 eu officials say officials diplomats involve prepare first orientation debate among envoys 27 eu state warn london assume clinch initial deal next month open talk post-brexit relations governments see benefit make britain wait paper prepare discussion see reuters show envoys would discuss scope duration transition include far britain could remain single market obligations eu program agriculture fisheries scheme nuclear pact euratom security defense arrangements would also debate transition would affect eu agreements state trade fisheries aviation treaties several officials speak reuters say britain would abide eu laws transition period even change period would influence anything else would complicate second official say two others express view eu view transition period future way moment truth expose lie campaign brexit say britain able cake eat third official say wednesday discussions also seek gather view trade relationship london follow transition may finish december 2020 end current seven-year eu budget period eu leaders tell prime minister theresa may last month ready negotiate post-brexit arrangements london offer concessions divorce term hold prospect open talk summit mid-december order officials start prepare among 27 move new phase talk british brexit minister david davis expect brussels friday first negotiations since mid-october summit may anticipate brief encounter eu brexit negotiator michel barnier expect produce breakthrough much britain pay eu leave diplomats officials say continue slow pace divorce talk increase possibility eu leaders would refuse next month open trade talk say may already consider useful tactic britain anxious prevent businesses relocate investment believe bad get british good us ... maybe could delay instance march increase uncertainty trigger contingency plan corporate sector first eu official say would ruthless risky people different view risky eu diplomat involve negotiations say expect envoys also discuss handle possible failure next month open next phase talk may refuse meet eu demand british move say continental negotiators believe british anxiety businesses start shift investments new year transition deal could brussels advantage officials say britain full membership single market even transition give up-front agreement part big package instance feasible expect would single market ... pay eu budget one say one two meet eu envoys expect agree might offer britain term transition period officials say result discussions present british however leaders agree open new phase talk eu eye tough brexit transition term