First of all this might not be the right place to ask this question, if this is the case please let me know where the right place is?
Currently there is the module best practice reference on http://devdocs.magento.com/guides/v2.1/ext-best-practices/bk-ext-best-practices.html
In the first few days with Magento2 I have tried finding out what the 'best' way is of doing things with Magento2 and there does not seem to be a place which tells any new Magento2 developers what the plan is for Magento2 (e.g. what is going to be deprecated) and how to take a new approach to development.
As an example load and save are now deprecated I found a bit of info on Deprecated save and load methods in Abstract Model but there does not seem to be any real guidance from Magento on this.
another example is: Magento 2: Plugin vs Observer because of previously mentioned deprecation of methods a clear guide from Magento itself would be really good, in the current best practices for module developers I can not find anything along the lines of 'When possible use Plugins as particular events might become deprecated over time'
My Question: is there a location where these kind of changes are set out and how to approach these changes as a developer?