Neath can clinch the title if they overcome Swansea at St Helen's in tonight's crunch clash.
But they will have to contain a marauding All Whites side who have enjoyed a rise in fortunes in recent weeks, culminating in their 24-20 victory over Cardiff last weekend.
The Welsh All Blacks have swept to the summit of the table and now stand on the brink of bagging the title.
But if they fail to win tonight there is a host of clubs ready to step into the breach. Cardiff, Llanelli and Newport all form part of the chasing pack and any one of them could steal the honours.
If Neath plunge to defeat tonight, Llanelli would scoop the title providing they can put Caerphilly and Cardiff to the sword in their final two games
But if the Scarlets slip up then Cardiff and Newport could spring to title glory. Cardiff face Bridgend tonight before completing their campaign on Friday against Llanelli.
Newport, who were clear favourites to clinch the title a few weeks ago, have been hit with a slide in fortunes. But the Black and Ambers have bounced back to give themselves an outside chance of ending up on top of the pile.
Their remaining fixtures see them lock horns with cup kings Pontypridd and Bridgend.
So the tension mounts as the chase for the championship looks poised to go right to the wire.
Ebbw Vale captain Damien Hudd picked up the biggest accolade of the night at the 11th Principality Premiership Awards Evening held at Principality Stadium, after leading his side to the title for the first time.
Wales assistant coach Robin McBryde is predicting a tough battle against England on Sunday despite the fact they may not be considered to be at full strength. Players will be out to impress Eddie Jones which makes England a dangerous proposition, he says.
Wales U20 captain Tom Phillips and performance psychologist Dr Rich Neil explain why spending three days at Monmouth RFC has further strengthened the togetherness of the squad ahead of the #WorldRugbyU20s
Alongside Scarlets flanker James Davies and Cardiff Blues centre Cory Allen, three Wales Sevens core players have made the extended training squad for GB Sevens. Wales Head coach Gareth Williams tells WRU TV's Graeme Gillespie why Luke Treharne, Sam Cross and Luke Morgan earned selection in the initial training squad for Rio.
Wales Sevens head coach Gareth Williams tells WRU TV's Graeme Gillespie he has had to overcome a number of injuries before naming a competitive squad for this weekend's penultimate round of the World Series in Paris.