P: Photoshop/Lightroom Mobile: Edit in interoperability for iPad

This is some weird logic and miss management. So we have to wait a few more months, thus photoshop for iPad is not coming in 2019. nice.

@391543, don't worry, PS for iPad is a separate team. When a release seems unusually quiet, it's usually because the LR team are working on something that takes more than one release cycle to accomplish.

Export options just came to Android, so when they make it to iOS (likely next release), that'll give us the ability to output the 16 bit TIFF's you desire to send to PS. Maybe they'll even get the direct integration done by then.

Lightroom should not send the raw file to Photoshop on iPad(this is what Lightroom Classic does on Win/Mac) - this will require camera raw with xmp files integrated in Photoshop for iPad which will take time.
Lightroom for iPad should send 16 bit/Pro Photo RGB tiff much like Lightroom for Mac/Win does now when "Edit in Photoshop" is clicked. This functionality is already in Lightroom(not classic), it needs to be enabled on the iPad version. I've checked and Photoshop for iPad has no problem working with 16 bit/Pro Photo RGB files - I've exported a raw file using Lightroom Mac/Win to Photoshop using "Edit in Photoshop" and stored it as a Cloud PSD. Then Photoshop on iPad opened and edited the file successfully.
As a very first version this will be great, we most probably don't need a way to return this file to Lightroom, though it will be great to have both the raws and psdc files in the Lightroom albums.
This should have being there yesterday - now Photoshop for iPad is simply useless for photographers and creates a huge frustration. We understand that there won't be all the filters and adjustment layers in version 1.0 but not being able to start editing 16 bit tiffs is a real deal breaker and disappointing.

Adding psd as a format option in LR for iPad export would allow a work around as one can export in psd from PS for iPad to iOS files someplace and then import back into LR.
  
So this is a temporary fix that could be implemented by the LR team, but all external evidence of very slow improvements to LR for iPad suggests that their iOS expertise is helping out on PS these days.

 Seriously, I have to wonder if Adobe even understands how people do their work! For photographers and photo editors, the ability to go from Lightroom to PSD and back is crucial. I can’t believe this feature is “on the radar”. LR Mobile can export to PSD Express (useless as it is), so it seems a no-brainer that it would be one of the first things offered. Are you guys trying to get us to jump ship to other apps? Because there are others who are listening to us!

Integration will require work from both teams, and the Photoshop team have been... you know, a little bit busy building Photoshop.

Round tripping to/from Lightroom will absolutely be an amazing workflow, which gets my vote 100%, but PS is 1.0 and LR users are only a part of their audience. If they waited until it could do all the stuff we wanted to do, it wouldn't ship for years. This is just a start, and a great feature request to start gathering votes. 

It's simply unacceptable.  

I hate raining on all the Photoshop team’s hard work. I’m sure it wasn’t an easy project. It’s just very frustrating as a user. This is THE workflow for so many people. Round tripping to Photoshop from Lightroom is second nature on desktop. Perhaps they hit a show stopping snag late in development? In any case, brings my iPad workflow to a screeching halt. Was so looking forward to it

To be the "world's best imaging and graphic design software" it must be able to work with RAW.  Why do I even have to state this?  

I would add that even ignoring the LR integration with PS on the iPad issue, there is a grossly missing ability in the new PS for iPad to read and edit raw files directly from the Apple's iOS file system which had been imported from a camera or storage card.