Sorry to tell you that MAS is in a bad shape now and there are no cadet courses planned for the near future. If you have your CPL IR with Frozen ATPL you may be lucky to get in to AirAsia here as they plan expension in the next few years. But I wouldn't do a full course just to count on that. As with SIA, I'm not sure if they are still recruiting cadets right now but it would be worth it to write in to them and ask.