How will we control the Apple TV after WWDC?

Siri
If Apple is going to introduce an Apple TV SDK today at the WDCC (source BGR), will the remote control be good enough to control third party apps? The now existing remote control doesn't support bluetooth and only uses Infrared signals. Won't the remote control be too limited to control the large variety of apps who now exist on other iOS devices? So they are going to use Siri right? No... since the third generation Apple TV doesn't has a built-in microphone (source iFixit).

Bluetooth
Since it's second generation the Apple TV also supports bluetooth. Will Apple release a new kind of control device that uses bluetooth? I don't think so...



Apple TV

Remote App
Will third party app developers have the possibility to use the usual iOS devices as control devices for thier apps? And if so, will the Remote app be updated on iOS, so that each third party app on the Apple TV can be controlled with it. Or will each app developer have to release their own "remote app" on the other iOS devices?

Storage
Another problem with third party apps on the Apple TV is the lack of storage on the device. The 3th generation Apple TV only has 8 GB flash storage. With iCloud most of the apps could store their info on the cloud, bypassing the need to store it on the device itself. But still... 8 GB is not a large amount of storage. On the other hand there are plenty of iPhone's and iPod Touches who also only carry 8 GB of flash storage.