From 1 Aug 2019, Suites and First Class passengers onboard Singapore Airlines will enjoy unlimited wifi, while Business Class and PPS Club members will have their entitlement increased from the current 30 MB to 100 MB.
Note that this is only applicable on flights that operate on wifi-equipped aircraft, namely the A350, A380, B777-300ER, and B787-10.
Now this news is timely, as other airlines are already offering free wifi for their passengers. For those not seated up in front, you can still purchase wifi onboard wifi-equipped aircraft. The pricing schedule will be made available to you when you attempt to connect to the service inflight.
For those who are holding onto the Citi Prestige card, you should be eligible for the Boingo service, which may be available to you only on selected aircraft.
H/T to Mainly Miles who alerted us to this development.