The B737 Tigerair flights will be in Tiger Livery, operated by Tiger Crew with Tiger inflight service, but flown by Virgin Australia Pilots. SYD/BNE/PHE - DPS are remaining as Virgin Australia operated due to a different market that allows for a full service flight.
Will be interesting to see what will become of the remaining routes though!
BNE: Only both JQ and VA left, GA axed the route recently citing the route was loss making for the airline, so VA could stick around due to limited competition on the route with a less aggressive JQ at only x5 weekly compared to MEL (9 weekly), PER (19 weekly). However things could change if XT launches its own services, VA could be down to daily services.
SYD: This market will get hotter once XT moves in later this year, like MEL, with XT, JQ, GA and VA that makes 4 airlines plying the route. Yields would probably drop due to extra capacity being added by XT, which could spark oversupply, VA could also be forced to go down to daily services.
PHE: Relatively no change
PER is currently the strongest destination to DPS, followed by MEL, these 2 face the most competition so it makes sense to hand these routes to TT for now. It's also interesting to note that a TT configured aircraft with all Y seating may further restrict the capabilities of the 73H, SYD and BNE being further away, may have also impacted the decision not to yet palm these routes over to TT, the aircraft already struggles as it is in VA's configuration.