In recent time Etisalat unveiled the iPhone 5s on its network, now they’ve also launched a 12-month warranty scheme and a new trade-in programme that will let you trade an iPhone 5s bought from them for an iPhone 6 whenever that launches.
Details hasn’t yet been given by Etisalat, but propably it wouldn’t be a straight swap for the new iPhone, propably there will be an additional cost to offset the difference.
You can walk into any Etisalat experience centre to get more details.