Here's an overview of past and future Methods conferences:
Methods I – 1972 – Charlottetown (PEI), Canada
Methods II – 1975 – Charlottetown (PEI), Canada
Methods III – 1978 – London (ON), Canada
Methods IV – 1981 – Victoria (BC), Canada
Methods V – 1984 – Victoria (BC), Canada
Methods VI – 1987 – Bangor, Wales – conference proceedings published by Alan R. Thomas (ed.), 1988, Multilingual Matters (no longer listed in their catalogue)
Methods VII – 1990 – Bamberg, Germany
Methods VIII – 1993 – Victoria (BC), Canada
Methods IX – 1996 – Bangor, Wales
Methods X – 1999 – St. John's (NL), Canada
Methods XI – 2002 – Joensuu, Finland
Methods XII – 2005 – Moncton (NB), Canada
Methods XIII – 2008 – Leeds, England
Methods XIV – 2011 – London (ON), Canada – conference proceedings
Methods XV – 2014 – Groningen, The Netherlands – conference proceedings
Methods XVI – 2017 – Tachikawa, Tokyo, Japan – conference proceedings
Methods XVII – 2022 – Mainz, Germany – conference proceedings fc in 2024 (Language Science Press)
Methods XVIII – 2024 – Melbourne, Australia
Methods XIX – 2026 – Victoria & Vancouver (BC), Canada; July 25 - 31 (dates to be confirmed; pre-conference workshop on Saturday)
Methods XX – 2029 – open for bids!