それと、TGの情報から日本路線だけ抜粋
https://www.routesonline.com/news/38/airlineroute/280988/thai-airways-international-nw18-international-changes-as-of-11oct18/

Bangkok ? Fukuoka 777-300 replaces A330-300 during following period: 01NOV18 ? 30NOV18, 01FEB19 ? 30MAR19

Bangkok ? Nagoya Chubu eff 28OCT18 A350-900XWB now scheduled to operate 2 daily, replacing previously planned 1 daily each A350 and 787-8

Bangkok ? Sapporo New Chitose
eff 28OCT18 747-400 replaces 777-300, 7 weekly
eff 02DEC18 Planned increase from 7 to 10 weekly unchanged. TG680/681 now scheduled with 747-400, instead of 777-300 (Overall 10 weekly 747)

Bangkok ? Osaka Kansai eff 28OCT18 TG622/623 A350-900XWB replaces previously filed 747-400 (Overall 1 daily each 777-300ER and A350)

Bangkok ? Tokyo Haneda eff 28OCT18 TG682/683 747-400 replaces previously filed 777-300ER (Overall 2 daily 747)

Bangkok ? Tokyo Narita eff 28OCT18 Reduce from 4 to 3 daily; TG642/643 A330-300 replaces previously filed A350-900XWB