It’ll be a single-disc release and at the moment doesn’t list any extras and just the original Japanese language track.
The light novels began back in 2000 and there are twenty-one volumes out as of last fall.
While the folks at Sentai Filmworks brought out a standard definition Blu-ray version of Kino’s Journey on February 26th, 2019, Japanese distributor Frontier Works has finally decided to do the same.