Korean OEM quite simply asks: "Why spread these rumours?"
The Galaxy S III was only launched in May, but a report circulated this week claiming that a five-inch Galaxy S4 will debut at Mobile World Congress in February.
However, Samsung took to Twitter to voice play down the gossip, saying (roughly translated): "Please note that some media reported speculation that the Galaxy S Ⅲ subsequent models will be released in a simple rumor is not true. Not doing anything, why spread these rumors?"
It sounds reasonable, Samsung snubbed this year's MWC in favour of holding its own Unpacked event for the S III, which has sold more than 20 million units in 100 days.

http://www.mobile-ent.biz/news/read/...laxy-s4/019413