I think maybe 3 shows that aired the same season as Yuri on Ice have home release dates. It's not like it's just Yuri on Ice being delayed for some reason, there's always ~12-24 months (Funimation is usually 12-15 but not always) between when a show airs and gets the English home release.
I haven't seen a confirmation for US Blu-Ray release from any company that has licensing to stream it.
Give it time.
But as others have already said, dual English/Japanese language tracks are how Funi normally rolls. There's no need to be anxious about it.
When it's ready its release date (and details) will be announced. Chillax until then.