Remakes are the new cool in the cine industry. Probably the aversion to take risks or sheer lack of ideas push filmmakers to remake a successful film. Honestly, remaking a successful movie does not measure a filmmaker or an artist's talent, as there is already a set template which can be made use of as a reference book. But why can't the filmmakers try to improvise an other language's unsuccessful film? A film which had a good script but couldn't perform well in its native language due to various reasons can be explored for a remake. In that way, the cost, time and effort involved is comparatively less but would be challenging as well.
For example, Tollywood film Dear Comrade starring the dashing Vijay Deverakonda had a good premise but failed to impress Telugu movie buffs. But, we are sure that it would work wonders if it gets a Mollywood remake given its communist backdrop. Likewise, Fahadh Faasil's Athiran which was inspired from The Shutter Island could not keep the Mollywood audience engrossed. But, imagine if the same script had landed in Kollywood's thriller director Mysskin's hands? An edge of the seat thriller it would be! Or for that matter, Mikhael - Malayalee movie buffs could not buy Nivin Pauly in a heavy-weight mass role. But the same would have worked big had it been remade with Telugland's Mass Maharaj Ravi Teja.
As different kinds of films work in different film industries, an unsuccessful film that had an out of the box theme may do well in another industry. Hope the filmmakers explore this angle.