Dev feedback to the official I5 threads is beginning to come in.
On Controllers, they’re monitoring very closely the assertion that the AoE Duration and Recharge nerfs are too heavy in the face of what a Controller is all about. Statesman says he’s doing actual playtest of a Grav/Storm controller.
On Tanks, the Unyielding nerfs are being rolled back somewhat. The Defense debuff will be back at I4 levels. The Energy/Elements resists are being “doubled” (can’t recall the fraction they were originally reduced). Other indications, though, are that the Tanker stuff (esp. the aggro bits) are working as intended (to the Devs’ minds), and that Tanks that stick around to protect the squishies should be able to do their job.
Also, Taunt may only do five mobs, but it’s only five at a time. There’s no upper limit (aside from death) to the number of folks a Tank can taunt (Taunt, PAoE, punch-voke) over time.
More out there over time, I’m sure.