Will we keep LTI if we CCU to another ship?

Yes, that's the point of LTI. That's the point of CCUing in the first place. The entire point. Otherwise you could just melt the package and buy the other package. The whole reason CCU exists is to keep your insurance status and whatever other goodies are attached to a ship. So when you see the new CCU system, remember this was all to help you original backers. Can't stress that enough. Keep your packages.