We only know what TCP did with the ORAS sets, but we still don't know what TPCi will do.
Let us go back to generation 3.
In Japan, that generation was split into the ADV and PCG series. PCG started with the Japanese equivalent of ex Firered Leafgreen. In the international market, Generation 3 was the EX series.
In Generation 4, Japan and the international market pretty much mimics each other. Their DP series is our DP series. Their Dpt series is our Platinum series. Their LEGEND series is our HGSS series. Another thing to mention with the first seven sets in the international generation 4 sets is how prominant the Diamond and Pearl logo in the 7 sets are. In the first 4 sets, Diamond and Pearl is the most prominent, with the likes of Mysterious Treasures, Secret Wonders, and Great Encounters having a smaller logo. Diamond and Pearl logo looks smaller in the next 3 sets, with the Majestic Dawn, Legends Awakened, and Stormfront logos looking way larger.
In Generation 5, Japan only has the BW series, and so does the international market, but at one point, they rebranded their packaging logos. Japan rebranded their BW logo with a set that is equivalent to our Next Destines expansion, and the international market rebranded their Black and White logo to show some blue and red crystalization to represent Black 2 and White 2 starting with Boundaries Crossed. The logo resizing happens again in this generation. Black and White logo is larger in the first 3 sets, with Emerging Powers and Noble Victories having a smaller logo. Starting in Next Destines, the logo for Black and White is much smaller, while Next Destinies, Dark Explorers, Dragons Exalted, Boundaries Crossed, Plasma Storm, Plasma Freeze, Plasma Blast, and Legendary Treasures have larger logos relative to the Black and White logo.
With the XY series, we do not have any info as to what the international equivalent to XY Tidal Storm and Gaia Volcano will be called. It could be called XY Omega Ruby Alpha Sapphire, and subsequent sets may be called XY ORAS <place name here> ,where the O is the Greek letter Omega and the A is the Greek letter Alpha, kind of like in Heartgold Soulsilver, where the first set is called Heartgold Soulsilver, and the second set is called HS Unleashed. What we might see is the XY logo becomes smaller, because with XY, Flashfire, Furious FIsts, and Phantom Forces, the XY logo is the largest. So the XY logo might become smaller, then add the ORAS in there, kind of like Plasma in the plasma set, then add whatever name that comes after, so it would say XY ORAS something, where the XY logo is the smallest, the ORAS logo is largest, and the name of the set would be medium sized.
You can be sure that the February 2015 set will have some sort of logo change, no matter what it may be.