AWR Music Productions (the company behind the Distant Worlds concerts) will be bringing the NieR orchestral concert presented in Tokyo last year to Chicago, London, and Bangkok in 2020. The concert features orchestra and chorus, vocals by Emi Evans, direction by Arnie Roth (I assume this includes conducting), and on-stage appearances by composer Keiichi Okabe.
Jan 24: Chicago (tickets now on sale)
Feb 2: London (sold out)
Feb 15, 16: Bangkok
Here's the description from the official NieR concert site.
The music of NieR premieres in concert in Europe, North America, and Southeast Asia!
After 4 sold-out Tokyo performances in 2018, European and North American audiences will finally have the chance to experience this multimedia concert phenomenon. AWR Music Productions (producers of Distant Worlds: music from FINAL FANTASY) is proud to partner with renowned video game developer SQUARE ENIX once again to present NieR:Orchestra Concert re: 12018.
These European and North American premiere concerts will be performed by full symphony orchestra and chorus, and will feature the vocal stylings of renowned soloist Emi Evans, under the direction of GRAMMY Award-winner and acclaimed conductor Arnie Roth. NieR director Yoko Taro and composer Keiichi Okabe have created HD video projections especially for these concerts, which will be projected onto giant screens throughout the performance. With these spectacular visuals, accompanied by the sonic power of over 100 musicians on stage, fans will be immersed in the world of NieR like never before!