So the EU has published what it sees as acceptable proposals for no deal
Basic air connectivity: A proposal for a Regulation to ensure the provision of certain air services between the UK and the EU for 6 months, provided the UK ensures the same.
Aviation safety: A proposal for a Regulation ensuring that various safety certificates for products can continue to be used in EU aircraft without disruption, thereby avoiding the grounding of EU aircraft.
Basic road connectivity: A proposal for a Regulation covering basic connectivity with regard to both road freight, and road passenger transport for 6 months, provided the UK assures the same to EU hauliers.
Fisheries: A proposal for a Regulation to create the appropriate legal framework until 31 December 2021, or until a fisheries agreement with the UK has been concluded – whichever date is earlier – for continued reciprocal access by EU and UK vessels to each other's waters after 31 December 2020. In order to guarantee the sustainability of fisheries and in light of the importance of fisheries for the economic livelihood of many communities, it is necessary to facilitate the procedures of authorisation of fishing vessels.
So basically the one thing the EU won't give up is OUR fishing rights
It's hardly a big industry so what is the big deal ?