EUV is semiconductor industry's equivalent of commercial fusion: every 5 years, the prognosis is made that we will get commercial EUV in the next 5 years. And like that for the last 30 years.
TSMC will have multilayers 7nm EUV in 2019, Full 5nm EUV in 2020. Samsung has 7nm EUV sampling and are toying with the idea of EUV NAND and DRAM.
They are doing 7FF+ in 2019 with few steps in EUV already. GF and Samsung also have similar schedule. You don't have to trust me. You could look at their investor meeting notes or report from Anandtech.