The soon to be announced RX100 MKII has Hot Shoe, Wifi and swivel screen. I still have no info about the sensor but I guess it could use the same (or a slightly updated) version of the current 1 inch 20 megapixel sensor. The image you see here is a fake rendering but it gives you an idea of how the Hot Shoe could be placed :)
P.S.: Dear sources, could you also share the exact announcement date? Have to plan my vacation trip :)
RX100 links roundup:
RX100 price search links: [shopcountry 13014].
Cases: [shoplink 13347 ebay]Official Sony LCJ-RXA case[/shoplink], [shoplink 13344 ebay]Gariz case[/shoplink], [shoplink 13345 ebay]more leather case[/shoplink].
Batteries: [shoplink 13346 ebay]NP-BX1 Battery[/shoplink].
Special stuff: [shoplink 13343 ebay]Multi-Coated LENS ARMOR UV[/shoplink]. Magfilter at Amazon (Click here). RX100 filter adapter on [shoplink 13486 ebay]eBay (Click here)[/shoplink]
Message to sources: You can send me more info anonymously by using the contact form you see on the very right of your browser. You can also contact me directly at email@example.com.
Reminder (SR = Sonyrumor):
SR1=probably fake rumor
SR2=rumor from unknown sources
SR3=50% chance it is correct
SR4=rumor from known sources
SR5=almost certainly correct!