In my humble opinion Atlantic Star’s AVRO plans would only have a chance if:
1. SHG and/or DfID are willing to pick up the bill for leasing the AVRO RJ100 full time and have it and crew(s) based on St. Helena. Not sure if the 1.9 million originally set aside to subsidize Comair would be sufficient.
2. One or two weekly roundtrips could be operated between St. Helena and Cape Town with a technical stop in Walvis Bay on the northbound leg. HLE-CPT one day, return CPT-WVB-HLE following day. Aircraft and crew one night in CPT. That would enable same day connections to/from several international flights.
On other days occasional scheduled roundtrips HLE-ASI-HLE could be offered.
3. Technical and operational requirements (e.g. technical support, spare parts, prevailing wind conditions) allow a safe operation
4. Air fares can remain affordable and flights can be sold through a major global distribution system.
An isolated stand alone solution would not help promote tourism.
5. A UK registered air service provider qualified for traffic rights to/from South Africa is available.
As far as I know Atlantic Star (until now) has neither a valid tour operator licence nor a valid AOC Air Operator Certificate.