1. I think if Germany (53 on order) was able to offer a mix of at least 3 new and some used A400Ms to Singapore; such a purchase to replace the 10 C-130Hs would make sense. AirbusDefence touts further near-term A400M sales on back of recent Kazakhstan deal. "We have various campaigns going on, and some are not far from conclusion", Jean-Brice Dumont, Head of Military Aircraft.
2. In terms of wider capabilities, Dumont says programme now only about 1 or 2 years away from achieving full capability for the A400M — the ability to conduct air-to-air refuelling of H225Ms (and to be eventually certified for delivery of 116 paratroops) at FOC, will be especially important to Singapore. Thus far, 81 wet contacts between the A400M and helicopters were completed by day and night with certification on track for the later part of 2021. In recent experience of A400M during the Kabul airlift, 25 aircraft used by all but one customer (Malaysia). Along with 9 MRTTs, 120 evacuation flights flown by the A330MRTT with only one technical event (burst tyres due to emergency braking to avoid civilians on runway). The A400M capabilities are maturing and being demonstrated in actual operations.
3. If Singapore is interested in operating a fleet of the A400M, I suspect that at least 3 will need to be Satellite comms equipped. It would be preferable if the Germans or the French could share the non-recurring engineering costs for a standard set up for a satellite communication installation, to make such a sale attractive.
4. With its 100th operational A400M delivered in May 2021 (with several key development hurdles cleared within the last 18 months), and the current program to deliver 176 aircraft, its future looks brighter than ever before.