It's the time of the year where phone developers begin working on their next "big thing" and Samsung is no exception. While we haven't heard a lot about the highly anticipated Galaxy S6 so far, we do know that Samsung plans to reveal it at the 2015 Mobile World Congress in March. As we approach the date, rumors are slowly slipping out of Samsung headquarters.

A recent report from SouthKorea seems to imply some major software shifts may be in the phone's future. According to BusinessKorea, Samsung's IT and Mobile Communication divisions are looking to optimize TouchWiz (the touch interface software on the Galaxy S series) on the S6.

"We are aiming to get rid of unnecessary functions and simplify our UI at the level of Google's Nexus 6," one source stated.

The Google Nexus 6's UI is considered one of the best UIs in the Android market. This is (in part) because of the lack of background software (like Touchwiz) clogging up the RAM.

The TouchWiz UI has been installed on the Galaxy Series since the S3. At the time, it changed how smartphones work and set it apart from competitors. However, the software has developed a negative reputation since the S3. When Phone Arena asked its readers what they thought was the biggest drawback on Samsung phones, the top answer they received was Touchwiz.

This TouchWiz update isn't the first S6 rumor to leak so far. Earlier S6 rumors noted that the physical smartphone is going through a redesign. One source said that the S6 may come with edge panels similar to those on the Galaxy Note Edge. Others included pictures and specs for the device.

Samsung started that it wanted to release smartphones with 4k 3840 x 2160 displays by 2015. It's uncertain if this goal includes the Galaxy S6.