Plopsa is a lovely little park and RtH has obviously been such a wise move for them. I've been to the park 3 times since its opened and never seen it on 2 trains (which included a trip in the middle of summer and it on a 1hr+ queue...), so hopefully they can operate and maintain it appropriately.
Anubis is slept on a bit these days. Good ride.
I'm intrigued to see what they do next. Their indoor Bumba World has no doubt filled a gap / extending the offering for younger audiences, but I thought it was a bit rubbish in comparison to the Maya Land, with the dark ride being quite weak. The park could probably benefit from a new, more modern, high throughput 1m restriction coaster. Vekoma/Gerstlauer have good offerings on that front.
Big issue I have with Plopsa - as you noted - is the cost. Food is expensive and not good quality. Park tickets are reasonable enough, but then with parking, etc, it's not cheap. I've noticed that they've been doing more UK-focused marketing lately, so they do seem to be capitalising on their location more, so it'll be interesting to see what they do next.
Looking forward to your thoughts on Asterix!!