Got Part One of The Final Chapters on blu-ray back on Monday.
Not too many special features. Episode 112 had a video commentary (video of the Voice Actors in the studio with a PiP of the episode in the corner) featuring the episode writer, VA for Videl/Goten, VA for Spopovich, and VA for Gohan. And of course 1080p textless opening and closing.
Going to repost the textless opening:
https://youtu.be/Tju56GcuIwM
As well as closing:
https://youtu.be/fecd0wswf4k
I always buy DB stuff as Funimation has gone on record saying that sales of DB/DBZ/etc. stuff actually helps pay for other series that wouldn't get the attention they might otherwise not get. It actually makes sense that Goku helps others, both in his series, and for anime in general.