There are several new portable tube amps for 2016. The Woo Audio WA8 and ALO Continental V5 are getting the most attention.
http://wooaudio.com/products/wa8eclipse.html
http://www.head-fi.org/t/802291/introducing-the-new-continental-v5-portable-tube-amp
A company called Phatlab also has a couple of models that run dual SET mini-tubes, have 1/4in (6.3mm) headphone jacks and, despite some impressive high power specs, micro usb charging. The Phantasy appears to priced similar to the ALO CDM and WA8 but the Sassy is roughly $1K less (or around the same price as the CV5).
http://www.phatlabaudio.com/
The Phantasy is full Class A and also appears to be full tube (not hybrid) with miniaturized output transformers.
The Sassy (strange name), on the other hand, is a hybrid but may have current mode amplification. Features here: http://store.jaben.com/products/phatlab-phat-sassy show it has a
Current Dumping Output Stage. Makes sense after seeing the 1000mW per channel output at 30 ohms on the manufacturer's page.
Another amp I found is this one by a company called Lars & Ivan:
http://lars-ivan.com/products_tha30x.html
They have a few tube amps with minor differences (like window/no window for the tubes). The 8A/X models have a volume knob but the THA-30/X have a digital volume control and a rare bass boost mode. Most of the amps (on paper) are less power than all the others above (and a 6moons review suggests there isn't much power or impact from the amp) but the prices are much less ranging from $250-$350 (although the lars-ivan store still appears to be down).
Right now I'm leaning toward the ALO CV5 (over the WA8) but is anyone familiar with the other amps?