Lion Air vs. AirAsia

That just caught my eye: after AirAsia announced to buy Batavia Air, merges them with Indonesia AirAsia and thereby becomes a real competitor to Lion Air, now Lion Air (together with NADI) strikes back in AirAsia's home country.
Competition in Southeast Asia will get hard in the next few years. But the region is the one with the highest growth and everyone wants to get piece of the cake.
Will the new airline place a large narrowbody order? Or will they be fed from Lion Air's existing orderbook for B737-900ER/-MAX9? Next Tuesday could be interesting - and AirAsia already announced that they want to place an order for 50-100  more A320 (ceo I guess) at the Berlin Air Show (ILA), also next week.