David Pickup writes:

The Royal Mint is to reissue ten rare 50p coins next year, in celebration of the denomination's 50th anniversary.

According to a Royal Proclamation published earlier this month, the new 50p coins will be released in 2019, and they will all be reissues of previous designs.

The list of 50p coins cited for reprint includes the scarce 'Kew Gardens' 50p, a coin much sought-after by collectors and often considered the rarest 50 pence piece incirculation.

It's not yet known whether the coins will be issued for circulation, or will simply be sold as commemorative, display editions, but it is expected that commemorativecollector's editions in Cupro-Nickel, Silver and Gold will be made available. The new coins will presumably be identifiable by having 2019 stamped upon them, and may not be asvaluable to collectors while older, original versions are out there.

To read the complete article, see:
Rare 50p coins are being reissued by the Royal Mint -including the Kew Gardens design (https://inews.co.uk/inews-lifestyle/money/rare-50p-coins-valuable-reissued-royal-mint-2019-kew-gardens-coin/)