Past 1 year , it sucks holding SGD.

It dropped more than USD and interest is lower than USD.

I not hawk nor dove

But I noticed DXY is dropping like a rock today.

Meaning USD is falling vs other developed currencies of countries which the US is also tarrifing like EU, Japan, GBP. Which is unexpected

I think only malaysian investor would run back to Malaysia... our market is too small, illiquid and not really open (for fx conversion).
funds would prefer to hide in SG.

wise already indicated SGDMYR to be at around 3.351 level after fees. that's just from usdsgd movement.

If MAS 'weakens' its currency, more external parties will buy-up the SGD,... It'll be only within a limited time period before the SGD will strengthen back. Anyway,.. if we are into S-REITs, a weaker SGD will give us more dividends.

SG does not export 'raw' goods, what they export are goods of a higher-tech quality, which can command a premium by nature.

Waiting for 4 - 3.80 why?

Expecting FED to cut rates and BNM will hold the %3 + Trump need weaker USD + Malaysia unlikely to hit 2025 GDP growth target of %4.5-5.5

Honestly, worrying about the tax on remittances in 10 years time might not even be the most important thing to stress over.
If really want to use the brain cells productively, focus on the bigger swing that is actually usdmyr itself.

Take today’s rate... around 4.16.

Over 10 years, 3 out of many realistic/possible scenarios:
a) if usdmyr strengthens to 5.0
=> your usd stash gets a +20% fx boost before investment returns even enter the picture.
b) If usdmyr drops to 3.0
=> effectively lost ~28% in ringgit terms just by holding your funds overseas too long.
c) If usdmyr static
=> remit back just before 2036 lor...

Compared to these FX swings, the remittance tax issue is… honestly small potatoes.
FX alone can dwarf whatever tax the government eventually implements.

hence long-term USD/MYR direction might be the more meaningful thing to ponder, even though nobody ever got it right.... 

What is obvious? please share information.