Druids, the Druid Changes page is now updated for the current Beta build (16004). Sorry it took so long!
The new version of the spreadsheet supports user-provided Spellpower, Mastery, Haste, and Crit values and will update to reflect the expected mana efficiency and healing throughput of your spells for your gear. However, do note that this will not work exactly for Swiftmend – I am using the tooltip-supplied value where each tick of the Swiftmend HoT is 12% of the original Swiftmend heal, but in-game the Swiftmend heal is somewhat inconsistent.
This will also not work accurately for the Force of Nature talent, as the Treants’ spell cast times decrease with Haste, but they kind of just stand around with their … branches up their trunks … between casts, so I can’t quantify just how much benefit they get from your Haste rating.
Nonetheless, I hope this helps! 🙂