You will get an email notification approximately 24 hourrs ahead of when the event starts.
Bitfinex delists BTT/BTC, DGB/BTC, RIF/BTC, SNT/BTC, TNB/BTC, WAX/BTC, XVG/BTC, FUN/ETH, DATA/ETH, XLM/GBP, XLM/EUR, and TRX/GBP pairs.