This new terminal is currently being constructed to the left of the existing airport and is expected to be completed sometime next year. This terminal is completely different from the new airport/terminal that is being constructed near the Sheikh Saad Airport.
The Jazeera Airways Airport Terminal aims to both alleviate the current overcrowding at Kuwait International Airport and meet the requirements of travelers in Kuwait for many more years to come.
One of the largest-scale and most important infrastructure projects currently under construction in Kuwait, the new terminal will divert 1.5 million passengers a year from the extremely busy airport once it opens in early 2018. This will increase to over 2.5 million travelers per year in the next few years.
I couldn’t find any more pictures but you could read more about the design over [Here]