Any more news on this. I am not seeing WGS 84(G2139) in ArcGIS Pro 3.0.3. This realization has been out for nearly 2 years! I know that the differences between WGS 84(G2139) and WGS 84(G1762) is tiny but the current realization should still be usable in ESRI's software.
(U) NGA keeps the WGS 84 RF closely aligned to the International Terrestrial Reference Frame
(ITRF). This ensures adherence to international standards and facilitates interoperability with other
GNSS. In this pursuit, a new realization of WGS 84 RF was introduced on January 3, 2021 that removed
small systematic biases with respect to ITRF. Accordingly, the current frame is designated WGS
84(G2139) and replaces WGS 84(G1762’). WGS 84(G2139) is coincident with ITRF14(IGb14) for the
purposes of positioning and navigation.
(U) Table 1 lists the 7-parameter transformation for (G1762’) – to – (G2139). Using a mean Earth
radius of 6,371,000 meters; the translations are sub-centimeter and the rotations are negligible but the
scale change imparts a height adjustment of -2.8 centimeters at this mean radius.
Table 1. 7-parameter transformation from WGS 84(G1762’) to WGS 84(G2139)
Translation in x 0.0058 meters
Translation in y -0.0064 meters
Translation in z 0.0070 meters
Angular displacement in x 0.08 milli-arc-seconds
Angular displacement in y 0.04 milli-arc-seconds
Angular displacement in z 0.12 milli-arc-seconds
Scale factor -4.4 parts-per-billion
