The SQ Lounge at TPE has been there for a long time. It has limited hours and I think only 1 shower.
The problem comes down to the delayed T3. They are just out of space in T1 and T2. It will really be interesting to see what lounges the TW3 (China Airlines, EVA and Starlux) end up building in T3.
No matter how big, I doubt they will be at the CX or SQ level - both size and comfort.