I was reading http://bib.oxfordjournals.org/content/15/2/138 and it made me wonder if there is a roadmap for various suffix array construction algorithms to be incorporated into SeqAn? In particular SA-IS (refs below) seems interesting. Nong G, Zhang S, Chan WH. Linear suffix array construction by almost pure induced-sorting. In: Proceedings of the19th IEEE Data Compression Conference (DCC’09). Washington, DC: IEEE Computer Society, 2009, 193–202. Nong G, Zhang S, Chan WH. Two efficient algorithms for linear time suffix array construction. IEEE Trans Comput 2011;60(10):1471–84.