It's not really new technology. If you have ever owned a 2-stroke dirtbike, it's relatively the same concept. Though, it is different from the "Nikasil," in that it is not electro-deposited on to the part. The process that is used to coat the liners into the aluminum block is similar to the one in the first link, but uses the a plasma arc instead of oxy/acetlylene fuel in the second link.
http://www.fusionhouston.com/prodserv_combust_wire.htm
http://www.fusionhouston.com/prodserv_plasma.htm
It is really pretty interesting; I do quite a bit of business with the shop in the links and so I am fairly familiar with the processes.
As I can see, there really is no downside to this process. Theoretically, any damage to the cylinder in a sleeved engine would generally require an overbore or a new sleeve anyway. Here, you can repair the damaged bore(s) as needed. I like it.
Basically, it will be just as strong and the cylinders should dissipate heat more efficiently.