It has been confirmed that Enso will only be on one of Icon's three trains. Due to the limited capacity, it is - unsurprisingly - an upcharge.
£15 - standard ticket. You virtually wait the length of the queue of Icon
£25 - VIP ticket. You only wait 10% of the queue time for Icon
I guess £15 is comparable to Steel Taipan's spinning seat, although that doesn't have much of a wait to get on I believe?
I get the reason for the upcharge. But even though it's a pretty unique experience, it's just so expensive considering you can literally experience spinning launched coasters at other parks included in the park ticket.
Source from the horse's mouth:
https://www.blackpoolpleasurebeach.com/icon/