the XGT 8-day Reversos are being discontinued (at least, the old ones), which is a shame because I LOVE a long power reserve. However, the new Grande Reverso size (976 or larger 986) versions are quite nice, and - who knows - JLC might do a 15-day power reserve.
I don't think you can go wrong with a Memovox, as it is as much a part of the JLC DNA as a Reverso - perhaps more so since it NEVER ceased production, and the Reverso did (for a little while).
Warning: if you wait 'til SIHH, it'll be June AT THE EARLIEST that you'll see any product. If you're bent on getting a watch right now, I'd go for the Memovox (it's SO clean and beautiful - and timeless).
Just my 2 cents.
-Dean