We won't know 'til they are released. But currently the premium for the higher end (and thinner) "T" series is the cpu and ram are soldered. There might be one

We won't know 'til they are released. But currently the premium for the higher end (and thinner) "T" series is the cpu and ram are soldered. There might be one blank ram slot, not sure. Ironically for the cheaper 'e' series, the ram is socketed (not sure about the cpu). So hopefully for the new 'e' and 'l' series, they'll stay the same. More than likely because the 'T' series are being pushed to be thinner and thinner, they will remain soldered.