The latest anime in the Gundam Build franchise, Gundam Build Divers, premiered in April 2018, and Crunchyroll and Gundam.info both streamed the series. Funimation then added the anime to its FunimationNow streaming service last month. The series is available with English subtitles and an English dub.
Gundam.info describes the story:
Gunpla Battle Nexus Online (GBN) is a new network game that lets people enjoy a variety of missions using Gunpla in a virtual cyberspace dimension. Middle-school students Riku Mikami and Yukio Hidaka recruit their classmate Momoka Yashiro and dive together into this vast world. Becoming "Divers," or inhabitants of GBN, they meet a mysterious girl named Sarah who has an amazing sensitivity to Gunpla. They begin playing alongside her, but…
Through many encounters and experiences, Riku and his friends will build not only Gunpla, but their own adventures as well!
The Gundam Build Fighters: GM no Gyakushū (GM's Counterattack) film focuses on Sei Iori and the original cast of Gundam Build Fighters in a new story. The film opened in Japan in August 2017. The five-episode Gundam Build Fighters: Battlogue short net anime series also premiered in August 2017. Both projects were part of an overall Gundam Build _Extra Battle project.
Source: Sunrise panel at Sakura-Con