Mae Gweinidogion yr UE wedi dweud eu bod yn awyddus i gefnogi'r fenter hon, er bod oedi wrth i'r Papur Gwyrdd gael ei ddatblygu ar gyfer Strategaeth Hedfan newydd i'r DU. Gwnaethpwyd yn glir hefyd na fyddai unrhyw ddatblygiadau ar gynnig y Rhwymedigaethau Gwasanaeth Cyhoeddus tan sefydlu Polisi Hedfan newydd i'r DU y flwyddyn nesaf, ond wedi iddo gael ei basio mewn deddf, bydd angen gwneud llawer o waith o hyd er mwyn gweithredu hyn.Mae'n amlwg y bydd proses y Papur Gwyrdd, y Papur Gwyn, Deddfwriaeth (mewn cyfnod pan fydd Brexit yn pwyso ar allu deddfwriaethol), datblygu meini prawf newydd a gwerthusiad yr Adran Drafnidiaeth o'n cynigion yn debygol o gymryd amser. Nid oes gennym reswm i gredu y bydd y broses hon wedi'i chwblhau o fewn y dair blynedd nesaf.
UK Ministers have said that they are keen to support this initiative, although it is being delayed whilst a Green Paper is developed for a new UK Aviation Strategy.  It has been made clear that no progress will be made on the Welsh PSO proposal until a new UK Aviation Policy is in place next year, but after it has been passed in law, a considerable programme of work will still remain to put it into practice.  It seems clear that the process of Green Paper, White Paper, Legislation (at a time when Brexit will dominate legislative capacity), development of new evaluation criteria and a DfT evaluation of our proposals is likely to be time consuming.  We have no reason to believe that this process will be complete within the next three years.