Complex sentence: Two mini-series were published (the first was a four-issue run; the second a 3-issue run subtitled "Forward To The Future") as well as a "Special" Issue reprinting parts of the first mini-series' first issue.
Split into simpler sentences: Two mini-series were published, the first being a four-issue run; the second, a three-issue run subtitled "Forward To The Future". A "Special" issue was also released, reprinting parts of the first mini-series' first issue.