brussels british prime minister theresa may meet european commission president jean-claude juncker lunch brussels monday could breakthrough brexit talk timeline follow 10 days determine whether britain avoid costly delay give business assurances smooth exit european union free trade big market future may want eu open second phase brexit negotiations concern relations britain withdrawal march 30 2019. eu sufficient progress agree divorce term notably three key issue financial settlement guarantee right eu citizens britain soft border ireland deal money effectively do eu officials say last week indications agreement citizens right understand least move forward irish issue avoid hold rest package part choreography political deal eu set may absolute deadline monday dec. provide new offer time eu leaders approve move phase summit eu-27 friday dec. 15. may push simultaneous reciprocal guarantee eu soft transition future trade deal may use show britons compromise secure eu want firm british offer 27 discuss leaders commit result complex dance step monday dec. 11 a.m. 1000 gmt european commission president jean-claude juncker brexit negotiator michel barnier meet guy verhofstadt brexit team european parliament legislature must ratify withdrawal treaty insist eu judge must final say enforce citizens right 1:15 p.m. 1215 gmt may join juncker barnier lunch eu executive berlaymont headquarter plan sign joint declaration progress far talk wednesday dec. 10 a.m. juncker chair weekly european commission meet barnier update progress commission could say sufficient progress move phase p.m. eu-27 envoys meet prepare formal decision sufficient progress take eu-27 summit dec. 15 work draft negotiate guidelines future trade deal monday dec. 11 eu-27 sherpas meet prepare summit tuesday dec. 12 eu affairs minister eu-27 meet prepare summit thursday dec. 14 p.m. may attend routine eu summit brussels defence social affairs foreign affairs migration agenda friday dec. 15 may leave eu-27 leaders hold brexit summit could take one comprehensive decision phase break separate ones transition future tie january outline eu transition offer may ready britain retain right except vote bloc meet obligations end 2020. february agree negotiate term eu-27 may ready open talk london free trade pact brussels liken one canada eu estimate 60 billion euros 71 billion britain pay cover outstanding obligations leave eu officials say agreement britain offer pay agree share items brussels want especially commit spend go 2020. side say precise figure much depend future developments british newspaper report would cost 55 billion euros spark mute criticism may hardline pro-brexit ally reject big payments irish prime minister leo varadkar say saturday london would pay eu 60 billion euros brexit barnier still seek commitment right million eu citizens stay britain brexit guarantee european court justice british judge may say ecj play role britain issue could vital ensure ratification withdrawal treaty european parliament compromise might focus make clear ecj role exist eu residents whose number shrink time member state take tough line brussels negotiators also insist britain make concessions family reunion rule social benefit eu want detail british pledge avoid hard border new land frontier island ireland might disrupt peace northern ireland london say detail depend future trade agreement eu officials say hard border avoid rule remain identical either side northern ireland could stay customs union eu britain may crucial northern irish parliamentary ally insist new barriers northern ireland british mainland eu say mean whole unite kingdom would follow eu rule something brexit campaigners want dublin say may possible reach deal sufficient progress monday days ireland bless eu-27 say veto move phase britain border offer unsatisfactory factbox countdown brexit breakthrough