Excellent ideas from the team, but the beginning of work in 2019 seems to me very not soon and competition among exchanges will grow.
People need a good product so long time is also okay. Compete with other exchanges are always fierce, need to look carefully before launch.
According to the recent medium blog article, the Qurrex team decided to launch the centralized exchange as they planned until the first half of 2019. Here is the article:
Good luck.