Even greater heights in his career? Whoa, the sky's the limit, then.
If I were to recommend two series where he is at his best, those two are definitely the ones. Some say that TGQ was even better in Yong Zheng Wang Chao than in San Guo Yan Yi, but I disagree. Maybe he was as good, but no one can ever replace his Zhuge Kongming in my mind (or heart, for that matter). BTW, how are you enjoying the YZWC song? Do you like it more than the KXDG one?
If you get a chance, check out some of his other series as well.