Hey Jay, I was wondering if you know anything about how Jace was able to planeswalk Vraska (and Loot) at the end of OTJ stories. Later in the Epilogue stories Jace was also able to planeswalk with food from Tarkir, so I assume whatever rule of the Blind Eternities that got changed with the omenpaths now allows this to happen (any living/organic matter can be transported and any planeswalker can act as a gate?). Secondly there’s the cross-plane language issues that seem to be irrelevant now?AFAIK he doesn't planeswalk away from the vault, Oko does and they're gone by the time he gets back. I've talked about the 'organic matter' thing earlier this week.
Re: Language - I've talked about this a lot in the past, but there's never been a cross-plane language issue, neither for planeswalkers or non-walkers we've seen move between planes before. Granted, the only examples we have are the Weatherlight on Rath and Mercadia, or all the peoples brought to Mirrodin, but in general this isn't something any long-form IP storytelling addresses in a major way, outside of handwavium universal translators, because learning languages takes over stories. I remember Stargate attempted it for a few episodes before giving it up completely without explanation. IMO language magic seems easy and common enough to be unremarkable, while more difficult languages and other scripts continue to cause people issues.