The sequel to the Samsung TecTile has actually leaked out into the marketplace even though it is not due to be released for a few weeks. Some users have already found tags in the marketplace that identify as a NFC Forum Type 4 tag, which indicates that it is the sequel. The different look of the tag also might give away the fact that the item you have in front of you is the TecTile 2.
The photo accompanying this article shows you what your Samsung Galaxy S4 screen will look like if you are using the original TecTile, and also shows what it will look like when you replace your current TecTiles with the new ones.
source: AnandTech via GSMArena