Yes, BattleIsle from Bluebyte had ZoC. Did Panzer General have ZoC? I played BI1 on the Amiga in the 90s, it was my first strategy game and great fun. A few weeks ago I played BI3 out of nostalgia. I regret that they never continued the series, it had many fans - maybe because BI4, which was a 3D real-time game without hex tiles, wasn't a success and a radical departure from TBS.
I am confident that Civ will never become a real-time game and remains true to the TBS roots. Civ and a modernized BattleIsle3-like TBS could probably coexist on the market, because BI was a 100% war game. Well, with the powerful modding tools we have, something similar to BI will certainly be created.