As most remember from Season 1, Pentos is where we first met Daenerys and Viserys Targaryen. It seems that for Season 5, the show will make a return to Pentos and reintroduce Illyrio Mopatis. If you don’t remember, Illyrio was the one that was informing Viserys that when the time comes, the Khal will keep his promise and take him back to Westeros (we all remember how that turned out). Here is a photo to refresh your memory even more:

http://www.fanpop.com/clubs/house-targaryen/images/30339295/title/daenerys-viserys-with-illyrio-mopatis-photo

WiCNet explains:

Game of Thrones has done a good job of making sure Essos and the Free Cities across the Narrow Sea stay fresh in the viewer’s mind, but lately that focus, has been in Braavos. But as more characters make the crossing away from Westeros, the map of Essos will start to become as wide as its western counterpart.

It also turns out that Pentos was originally filmed in Morocco and reshot in Malta but for this upcoming season, Pentos is being filmed in Dubrovnik which is where majority of the King’s Landing scenes are shot.

http://winteriscoming.net/2014/10/06/game-thrones-finally-returning-pentos/

This is a aerial view of the hotel that will stand in for Illyrio’s home in the new season. Beautiful, isn’t it? I’m really interested to know how Pentos is going to be brought back into the show. What about everyone else?

Anywho, here is a link to the article where you can check out more information and speculations on the filming! Enjoy!