In a shrinking market, growth requires finding new customers. Adtran has been remarkably successful, beginning with a splash in Europe at DT. They've built a surprisingly strong presence in U.S. cable, mostly unannounced. Now, they've cut a deal with CCS to offer microwave backhaul for wireless to the rooftop, a promising market.
Fiber to the basement + G.fast is finding a large market, including AT&T. In many locations, it will prove cheaper to use Wireless To The Rooftop, WTTR. That was the strategy Google planned when they bought Webpass, although they remain in near-stealth mode. Most G.fast is backhauled with 2.4 gigabit GPON, so the 5 gig microwave from others now available has the capacity. The CCS units are small. as you can see in the picture. Huawei tells me they are ready to bond 5 gig mmWave for 10 & 20 gigabits.
ASSIA, known for DSL optimization, has now announced they are supporting Telefonica Latin America on GPON fiber as well.