Tallgesse Heaven is really the Tallgesse 3?

Ever since Gundam wing Frozen Teardrop said that Cyrene Wind has a new Tallgesse, I cant help but think that its the upgraded version Tallgesse III of Endless waltz, because its the only mobile suit that wasn't shown being destroyed and I have seen mobile suits in Gundam Wing upgraded (Deathscythe to Deathscythe Hell and Shenlong to Altron) to more powerful versions.