Yup we are hoping to get this feature packed release out by mid July (subject to change ).
We will be pushing out blogs covering these new features and enhancements when the release goes lie.
Thanks for your interest!
At a minimum I am hoping for one layer of grouping. For example, environmental data could be grouped as we would in the Desktop software. Currently we have to create and maintain Layer lists which are cumbersome and painful.
Ideally we could have multi-level grouping (as in desktop software and when creating web maps with Server).
I also hope that layers from different hosted feature layers can be added to different groups. i.e. they don't all have to come from the same hosted feature layer to be grouped.
Hope this helps. Happy to expand upon anything if it will be useful
Yup for the initial release we wont be providing a nested group authoring experience. This is something we are gauging user requirements on and we will be supporting the nested group scenarios that a user could publish from Pro which will be included in their release later this year.
Different layer types can be in the same group
Firstly, grouping is GREAT! Very intuitive to use.