The reading plans is currently only available in the ESV translation.  Could the reading plans be made version agnostic in the sence that the translation would be used that you selected under BIBLE > LANGUAGE?

I know that not all translations have the Old Testament available and some is only available in text format, but it would be great if you could still nominate your prefferred translation and when the reading plan tries to load audio that is not available, you be offered a choice to pick another translation.