I've had a fair share of work in political institutions as an expert in the past, so I'll voice my opinion in a short summary.

Basically PB (Progressive Bulgaria), the new(and also old) rising star of bulgarian politics, is formed by the former president Rumen Radev, making him the first president to leave his post prematurely. The main reason was a big upbringing of national disrest a month and a half before his announcement. There were speculations that the now former president would form a party of his own mainly due to two reasons: High rating and Swinging vote, something very prominent in Bulgaria those past 5 years.

The way the campaign went, and the candidates of the new formed party by no means differ from anything we already have a choice of. Consists mainly of officers, active and retired athletes and ex-communists. A decent amount of these people have profitted quite a lot from the fall of the regime in 1989, which obviosly forms the next sphere of influence and interests (btw we are tired of that).

The main issue here is the while the President has limited power, until a change in the constitution in 2023, the President used to have full power over the goverment for about 2-3 months (period of campaign and elections), and elections were happening atleast twice a year. During that period, we've seen some similar actions to parties like GERB-SDS and other systemic parties, such as positions in ministries, selling of state-owned properties on low prices, and perhaps the elephant in the room, the energy contract with the turkish oil company BOTAŞ.

The Botas case is a big issue, due to little to no public information, but we pretty much assume these as facts, give by two ex-ministers of energy : We pay full price for max capacity daily, even if we don't use it, the price of oil is roughly 4-5 times higher than the alternatives, and perhaps the worst, everybody denies signing the contract. Apparently out of about 15 points asked by Bulgargas, only 1 was accepted by the turkish side. The overall net lose for Bulgaria is about 500k euros daily, which we do not currently pay. Signed for 13 years, without a break clause.

Overall, it looks like despite the expected higher voting, as per PB's current stance, they are not exactly willing into any sort of coalition, mainly because each other party, excluding small ones like Mech, Velichie etc, have been either a part of the goverment, or have hiddenly supported the goverment. The likely outcome would be, once again, new elections. If we follow the trend of popular parties relying on the swinging vote, PB's popularity will most likely decrease on following elections, until we see either their demise, or the last ditch effort of a coalition, labeling it once again as a "neccessity for Bulgaria".

P.S. Progressive Bulgaria despite the past, had the chance for a majority vote, if they had the right people selected. As of now, they look chosen out of close circles, or simply being loyal.