I'm personally not a fan of diesel...

Pero this is a very interesting development...

At current prices, the Ertiga is cheaper than the Xpander

Xpander Cross A/T - 1,255,000
Xpander GLS A/T - 1,128,000
Ertiga 1.5 GLX - AT - 998,000
XL7 GLX - A/T - 1,073,000

so if Suzuki PH decides to release a diesel M/T version ng Ertiga at with a 100K price increase, competitive pa rin pricing nila against the Xpander.
(M/T - bihira akong makakita ng diesel A/T sa India)

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Maruti’s 1.5L Diesel Engine Is Ready To Power Brezza, Ciaz & Ertiga | ICN


The BSVI compliant diesel engine will be first introduced in the Ciaz and the Ertiga. In fact, this powertrain will also power the next generation Vitara Brezza (codenamed YXA). The next-gen Maruti Vitara Brezza is reportedly to be introduced in the third quarter of 2021, before Diwali.