Newcastle will be a threat under the experienced Rafael Benitez
The Magpies bounced back at the first time of asking when they sealed automatic promotion with a thumping 4-1 win over Preston on Monday night.
Rafa Benitez is yet to commit his future to the club with speculation he will insist on a certain level of spending to enable him to build a competitive side in the top flight.
But if, as is expected, the Spaniard gets his way, the Geordies could make life difficult for a number of clubs who will be pushed one place closer to the drop next season.
Watford manager Walter Mazzarri
Watford may be sat 10th currently and somewhat overachieving but the Vicarage Road club are already being tipped to sack manager Walter Mazzarri.
With Newcastle back in the big time it is one more club bigger than the Hornets to compete with both in terms of transfers and league position.
Watford have done extremely well to avoid any prolonged flirtation with relegation since their promotion to the Premier League. That could be tested next season.
Bournemouth manager Eddie Howe
Bournemouth are not quite out of danger just yet this season but another point or two should secure a third straight season in the Premier League under Eddie Howe.
They have struggled for spells this season and while Howe is widely regarded to have worked miracles at the Vitality Stadium.
A big spending Newcastle, backed by 50,000 fans at St James Park, could push the Cherries one step closer to the drop next season unless they too invest wisely.
Crystal Palace manager Sam Allardyce celebrates beating Liverpool
One of big Sam Allardyce's former clubs could make his life more difficult next term with his new club Crystal Palace as he and Benitez - who are famously not too keen on oneanother - will be competing for the same level of players.
Palace have drastically improved of late but there is no getting away from the fact they have flirted with relegation for the last two seasons.
Should Newcastle get it right then that could leave the likes of the Eagles in a precarious position next term.
Stoke manager Mark Hughes
The Potters are a strange side, brilliant one week, distinctly average the next, and while they have worked wonders to establish themselves as a midtable Premier League team they have been treading water for a number of seasons.
They have a host of good players but should Hughes depart and the likes of Marko Arnautovic follow him then Newcastle's presence as a powerful Premier League outfit could push them into the relegation mix.
Under pressure: West Ham manager Slaven Bilic
West Ham United
After finishing just four points off the Champions League places last season, the Hammers still need another point or two to secure safety this term.
If they get it wrong with recruitment for a second season running and Benitez uses his experience and contacts to snare some quality signings then the East Londoners could face another season looking over their shoulders.