British team (I can't find the BOF News item about the selections, but they can be found on the BOF TrailO News section: https://www.britishorienteering.org.uk/site/trailo/news):
Open PreO: Charles Bromley Gardner, Ian Ditchfield, Tom Dobra, Peter Huzan, John Kewley and Iain Phillips
Para PreO: Dick Keighley and Peter Roberts
Open Relay: Two teams to be selected from all named above
Open TempO: Charles Bromley Gardener, Ian Ditchfield, Tom Dobra, Peter Huzan, Dick Keighley, John Kewley, Iain Phillips and Peter Roberts
The Team Manager will be Charles Bromley Gardner.
The programme is
http://www.etoc2018.sk/information/event-programme/
27th is the Model
28th+29th is the PreO
30th is the TrailO Relay, followed by the Opening Ceremony (!!)
1st is the TempO Qualifier and Final (top 18 from each heat qualify)
Additional encouragement to perform has been provided by the Selectors as they have stated that
Athletes aiming for selection to compete at the 2018 World Orienteering Championships will be required to show current form in at least one of JK 2018 and the European Trail Orienteering Championships 2018.
Results from last year's European Cup in nearby terrain (and same planner/mapper):
http://www.etoc2018.sk/ecto2017/results
For latest BOF PreO Rankings (after JK 2018):
https://www.britishorienteering.org.uk/site/trailo/Ranking